Simple Interest

Test yourself on Simple Interest

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Simple Interest

Simple interest means that a percentage of the starting amount is paid at regular intervals.

Types of simple interest

Annual interest is paid once per year and can be described as an amount being paid ‘per annum’.
Monthly interest is paid once per month.

Calculating simple interest

The amount paid from 9% simple interest per annum on a £200 saving over 3 years would be:
- 3 × 0.09 × £200 = £54.

Number

1.1

Using Numbers

1.2

Fractions, Decimals & Percentages

1.2.1Adding Fractions 1.2.2Subtracting Fractions 1.2.3Multiplying Fractions 1.2.4Dividing Fractions 1.2.5Mixed Fractions 1.2.6Calculating Percentages of Numbers 1.2.7Calculating Fractions of Numbers 1.2.8Multiply Decimals 1.2.9Place Value 1.2.10Recurring Decimals 1.2.11Exam-Style Questions - Recurring Decimals 1.2.12Convert Fractions & Terminating Decimals 1.2.13Convert Recurring Decimals 1.2.14Convert Decimals & Percentages 1.2.15Compare Decimals 1.2.16Compare Fractions 1.2.17Exam-Style Questions - Percentages 1.2.18End of Topic Test - Fractions & Decimals 1.2.19Diagnostic Misconceptions - Adding Fractions

1.3

Powers & Roots

1.3.1Powers 1.3.2Roots 1.3.3Indices Advanced 1.3.4Estimating Powers 1.3.5Estimating Roots 1.3.6Multiplying Powers 1.3.7Dividing Powers 1.3.8Power Raised to Power 1.3.9Fractions Raised to a Power 1.3.10Numbers Raised to Negative Powers 1.3.11Roots of Numbers 1.3.12Numbers to the Power of 1 & 0 1.3.13Surds 1.3.14Simplify Surds 1.3.15Rationalise Denominator 1.3.16Exam-Style Questions - Indices 1.3.17End of Topic Test - Powers & Roots 1.3.18Diagnostic Misconceptions - Squaring 1.3.19Diagnostic Misconceptions - Simplifying Surds

1.4

Accuracy

1.4.1Decimal Rounding 1.4.2Significant Figure Rounding 1.4.3Estimation 1.4.4Truncation 1.4.5Limits of Accuracy 1.4.6Bounds Addition 1.4.7Bounds Subtraction 1.4.8Bounds Multiplication 1.4.9Bounds Division 1.4.10End of Topic Test - Rounding & Estimation 1.4.11Diagnostic Misconceptions - Upper Bounds

Algebra

2.1

Introduction to Algebra

2.1.1Algebra Basics 2.1.2Substituting Values 2.1.3Algebraic Vocabulary 2.1.4Collecting Terms 2.1.5End of Topic Test - Algebra Basics & Power Rules 2.1.6Expanding Brackets I 2.1.7Common Factors 2.1.8Expanding Brackets II 2.1.9Rearrange For x 2.1.10Rearrange with Powers 2.1.11Exam-Style Questions - Basics of Algebra 2.1.12End of Topic Test - Expanding & Rearranging

2.2

Manipulating Algebra

2.2.1How to Factorise 2.2.2Factorising Quadratics 2.2.3Algebraic Fractions - Addition & Subtraction 2.2.4Algebraic Fractions - Multiplication & Division 2.2.5Diagnostic Misconceptions - Common Denominators 2.2.6Factorising Quadratics (tt)2.2.7Simplify algebraic fractions - cancelling factors 2.2.8Simplify algebraic fractions - factorisation

2.3

Proofs & Functions

2.3.1Identities & Proofs 2.3.2Exam-Style Questions - Algebraic Proof 2.3.3End of Topic Test - Algebra & Proofs 2.3.4Functions 2.3.5Combine Functions 2.3.6Composite Functions 2.3.7Inverse Functions 2.3.8Functions (tt)

2.4

Straight Line Graphs

2.4.1Straight Line Graphs 2.4.2y = mx + c 2.4.3Grad + YIntercept 2.4.4Exam-Style Questions - Straight Line Graphs 2.4.5End of Topic Test - Functions & Straight Lines 2.4.6Diagnostic Misconceptions - The x Coefficient

2.5

Common Graphs

2.5.1Shape of Quadratic Graphs 2.5.2Roots of a Quadratic Graph 2.5.3Completing Squares 2.5.4Turning Points 2.5.5Common Functions 1 2.5.6Common Functions 2 2.5.7Trigonometric functions 2.5.8End of Topic Test - Common Graphs

2.6

Transformations & Tangents

2.6.1Transformations 2.6.2Tangent on a Circle

2.7

Properties of Graphs

2.7.1Estimate Gradient 2.7.2Estimate Area 2.7.3Represent Gradient & Area 2.7.4Distance-Time Graph 2.7.5Velocity-Time Graph 2.7.6End of Topic Test - Transformations & Graphs

2.8

Solving Equations

2.8.1Solve Linear Equations 2.8.2Linear Equations with Fractions 2.8.3Solve Linear Equations Graphically 2.8.4Quadratic ±2.8.5Factorise Quadratics 2.8.6Quadratic Formula 2.8.7Complete the Square 2.8.8Solve Quadratics Graphically 2.8.9End of Topic Test - Solving Equations 2.8.10Simultaneous Equations 2.8.11Quadratic Simultaneous Equations 2.8.12Simultaneous Equations - Graphs 2.8.13Simultaneous Equations - Word Problems 2.8.14Approximate Solutions - Number of Iterations 2.8.15Approximate Solutions - Iterations to 1 DP 2.8.16Approximate Solutions - Iteration Formula 2.8.17Exam-Style Questions - Simultaneous Equations 2.8.18End of Topic Test - Simultaneous Equations 2.8.19Diagnostic Misconceptions - Solving Quadratics

2.9

Inequalities

2.9.1Solving Inequalities 2.9.2Solving Double Inequalities 2.9.3Solving Quadratic Inequalities 2.9.4Representing Inequalities 2.9.5Exam-Style Questions - Inequalities 2.9.6End of Topic Test - Inequalities

2.10

Sequences

2.10.1Nth Term Rules 2.10.2Recurrence Relationships 2.10.3Find Nth Term in Linear Sequence 2.10.4Check If a Number is In a Sequence 2.10.5Exam-Style Questions - Sequences 2.10.6Arithmetic & Geometric Progressions 2.10.7Key Sequences 2.10.8Quadratic Sequences 2.10.9Find Nth Term in Quadratic Sequence 2.10.10Exam-Style Questions - Geometric Series 2.10.11End of Topic Test - Sequences 2.10.12Nth Term Rules (tt)

Ratio

3.1

Ratios in Practice

3.1.1Converting Between Units 3.1.2Formula Triangles 3.1.3Scale Factors 3.1.4Ratios in Shapes 3.1.5Diagnostic Misconceptions - Writing Ratios

3.2

Manipulating Ratios

3.2.1Simplifying Ratios 3.2.2Turn Ratios into Equations 3.2.3Ratio Notation & Reduction 3.2.4End of Topic Test - Units & Ratios 3.2.5Part : Part Ratio 3.2.6Part : Whole Ratio 3.2.7Two Ratios 3.2.8Differences in Ratios 3.2.9Fractions in Ratios 3.2.10Numbers as Fractions 3.2.11Ratios to Fractions 3.2.12Exam-Style Questions - Ratios 3.2.13End of Topic Test - Fractions & Ratios 3.2.14Diagnostic Misconceptions - Combining Ratios

3.3

Percentage & Interest

3.3.1Convert Percentages to Decimals 3.3.2Convert Percentages to Fractions 3.3.3Find the Percentage 3.3.4More/Less Percentage 3.3.5Price from Percentage Change 3.3.6Calculate Percentage Change from Price 3.3.7End of Topic Test - Percentages 3.3.8Profit & Interest & Discount 3.3.9Original Price after Discounts 3.3.10Simple Interest 3.3.11Compound Growth & Decay 3.3.12Compound Interest 3.3.13Compound Interest - After How Many Days?3.3.14End of Topic Test - Percentages in Finance

3.4

Proportion

3.4.1Proportion 3.4.2Direct Proportion 3.4.3Inverse Proportion 3.4.4Exam-Style Questions - Proportionality

3.5

Gradient

3.5.1Gradient on a Straight Line 3.5.2Direct & Inverse Proportions as Graphs 3.5.3Gradient of a Curve 3.5.4Positive & Negative Gradients 3.5.5End of Topic Test - Proportion & Gradient

Geometry

4.1

Introduction to Geometry

4.1.1Geometry Basics 4.1.2Geometry Basics 2 4.1.3Regular Polygons 4.1.4Triangles & Angles 4.1.5Midpoint 4.1.6Bisectors & Perpendiculars 4.1.7Locus 4.1.8Angle rules 4.1.9Parallel Angle Rules 4.1.10Angles in a Polygon 4.1.11Angles in a Triangle 4.1.12Exam-Style Questions - Angles in Shapes 4.1.13End of Topic Test - Geometry

4.2

Triangles & Quadrilaterals

4.2.1Types of Triangle 4.2.2Angles & Triangles 4.2.3Congruence 4.2.4Similarity 4.2.5Quadrilaterals

4.3

Transformations

4.3.1Types of Transformations 4.3.2Invariant Points 4.3.3Effects of Transformations 4.3.4Exam-Style Questions - Reflection

4.4

Circle Basics

4.4.1Properties of a Circle 1 4.4.2Chords 4.4.3Properties of a Circle 2 4.4.4Area of a Circle 4.4.5Circumference of a Circle 4.4.6Fractions of Circles 4.4.7Exam-Style Questions - Circle Formulae 4.4.8End of Topic Test - Triangles & Circles

4.5

Circle Theorems

4.5.1Perpendicular Bisector of a Chord 4.5.2Angle at the Centre 4.5.3Angle of a Semicircle 4.5.4Opposite Angles in Cyclic Quadrilaterals 4.5.5Tangent Lengths 4.5.6Angle in the Same Segment 4.5.7Alternate Segment Theorem 4.5.8Exam-Style Questions - Circle Theorems 4.5.9Diagnostic Misconceptions - Circumference & Radius

4.6

Measurements & Units

4.6.1Length 4.6.2Area 4.6.3Volume 4.6.4Capacity 4.6.5Time 4.6.6Money 4.6.7Mass 4.6.8Bearings 4.6.9Scale Factor & Enlargement 4.6.10Exam-Style Questions - Enlargements 4.6.11Diagnostic Misconceptions - Hours

4.7

Calculating Area

4.7.1Area of 2D Shapes 4.7.2Exam-Style Questions - Area 4.7.3End of Topic Test - Circle Theorems, Units & Area

4.8

Triangle Formulae

4.8.1Pythagoras' Theorem 4.8.2Pythagoras in 3D 4.8.3Trigonometry 4.8.4Exact Values 4.8.5Sine Rule 4.8.6Cosine Rule 4.8.7Area of a Triangle 4.8.8Exam-Style Questions - Trigonometry & Area 4.8.9Diagnostic Misconceptions - Bearings from Angles 4.8.10Diagnostic Misconceptions - Pythagoras' Theorem

4.9

3D Shapes

4.9.1Types of 3D Shape 4.9.2Plans & Elevations 4.9.3Nets 4.9.4Volume of 3D Shapes 4.9.5Volume of a Cuboid 4.9.6Volume of a Cylinder 4.9.7Volume of a Sphere 4.9.8Volume of a Hemisphere 4.9.9Volume of a Cone 4.9.10Volume of a Pyramid 4.9.11Surface Area & Composite Shapes 4.9.12Surface Area of a Cuboid 4.9.13Surface Area of a Cylinder 4.9.14Surface Area of a Sphere/Hemisphere 4.9.15Surface Area of a Cone 4.9.16Exam-Style Questions - Volume

4.10

Vectors

4.10.1Vectors Introduction 4.10.2Vectors 4.10.3Translation 4.10.4Scalar 4.10.5Exam-Style Questions - Vectors 4.10.6End of Topic Test - Trigonometry, Shapes & Vectors 4.10.7Diagnostic Misconceptions - Column Vectors

Probability

5.1

Introduction to Probability

5.1.1Randomness & Fairness 5.1.2Sum of Probabilities 5.1.3Relative & Expected Frequency 5.1.4Frequency Tables 5.1.5Using Frequency Trees 5.1.6Complete Frequency Trees

5.2

Representing Probabilities

5.2.1Probability 5.2.2Probability Scale 5.2.3Sample Space Diagrams 5.2.4Sets 5.2.5Venn Diagrams 5.2.6Probabilities in Venn Diagrams 5.2.7Exam-Style Questions - Venn Diagrams

5.3

Probability Calculations

5.3.1Theoretical Probabilities 5.3.2Multiple Events 5.3.3Probability Calculations 5.3.4Dependent Events 5.3.5Independent Events 5.3.6Probability Tree Diagram 5.3.7Complex Tree Diagrams 5.3.8Conditional Probability 5.3.9Conditional Probability From a Two Way Table 5.3.10Conditional Probability Venn Diagrams 5.3.11Conditional Probability Tree Diagrams 5.3.12Exam-Style Questions - Probability 5.3.13End of Topic Test - Probability 5.3.14Diagnostic Misconceptions - Denominator

Statistics

Jump to other topics

Number

1.1

Using Numbers

1.2

Fractions, Decimals & Percentages

1.3

Powers & Roots

1.4

Accuracy

Algebra

2.1

Introduction to Algebra

2.2

Manipulating Algebra

2.3

Proofs & Functions

2.4

Straight Line Graphs

2.5

Common Graphs

2.6

Transformations & Tangents

2.6.1Transformations 2.6.2Tangent on a Circle

2.7

Properties of Graphs

2.7.1Estimate Gradient 2.7.2Estimate Area 2.7.3Represent Gradient & Area 2.7.4Distance-Time Graph 2.7.5Velocity-Time Graph 2.7.6End of Topic Test - Transformations & Graphs

2.8

Solving Equations

2.9

Inequalities

2.10

Sequences

Ratio

3.1

Ratios in Practice

3.1.1Converting Between Units 3.1.2Formula Triangles 3.1.3Scale Factors 3.1.4Ratios in Shapes 3.1.5Diagnostic Misconceptions - Writing Ratios

3.2

Manipulating Ratios

3.3

Percentage & Interest

3.4

Proportion

3.4.1Proportion 3.4.2Direct Proportion 3.4.3Inverse Proportion 3.4.4Exam-Style Questions - Proportionality

3.5

Gradient

3.5.1Gradient on a Straight Line 3.5.2Direct & Inverse Proportions as Graphs 3.5.3Gradient of a Curve 3.5.4Positive & Negative Gradients 3.5.5End of Topic Test - Proportion & Gradient

Geometry

4.1

Introduction to Geometry

4.2

Triangles & Quadrilaterals

4.2.1Types of Triangle 4.2.2Angles & Triangles 4.2.3Congruence 4.2.4Similarity 4.2.5Quadrilaterals

4.3

Transformations

4.3.1Types of Transformations 4.3.2Invariant Points 4.3.3Effects of Transformations 4.3.4Exam-Style Questions - Reflection

4.4

Circle Basics

4.5

Circle Theorems

4.6

Measurements & Units

4.7

Calculating Area

4.7.1Area of 2D Shapes 4.7.2Exam-Style Questions - Area 4.7.3End of Topic Test - Circle Theorems, Units & Area

4.8

Triangle Formulae

4.9

3D Shapes

4.10

Vectors

Probability

5.1

Introduction to Probability

5.1.1Randomness & Fairness 5.1.2Sum of Probabilities 5.1.3Relative & Expected Frequency 5.1.4Frequency Tables 5.1.5Using Frequency Trees 5.1.6Complete Frequency Trees

5.2

Representing Probabilities

5.2.1Probability 5.2.2Probability Scale 5.2.3Sample Space Diagrams 5.2.4Sets 5.2.5Venn Diagrams 5.2.6Probabilities in Venn Diagrams 5.2.7Exam-Style Questions - Venn Diagrams

5.3

Probability Calculations

Statistics

Practice questions on Simple Interest

Can you answer these? Test yourself with free interactive practice on Seneca — used by over 10 million students.

1
What type of interest is it when a percentage of the starting amount is paid at regular intervals?Multiple choice
2
What would be the amount paid from 20% simple interest per annum on a £200 saving over 2 years?Multiple choice
3
What would be the amount paid from 5% simple interest per annum on a £500 saving over 4 years?Multiple choice
4
What would be the amount paid from 10% simple interest per annum on a £800 saving over 10 years?Multiple choice

Answer all questions on Simple Interest

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Original Price after Discounts

Compound Growth & Decay

Simple Interest

Simple Interest

Types of simple interest

Calculating simple interest

Number

Using Numbers

Fractions, Decimals & Percentages

Powers & Roots

Accuracy

Algebra

Introduction to Algebra

Manipulating Algebra

Proofs & Functions

Straight Line Graphs

Common Graphs

Transformations & Tangents

Properties of Graphs

Solving Equations

Inequalities

Sequences

Ratio

Ratios in Practice

Manipulating Ratios

Percentage & Interest

Proportion

Gradient

Geometry

Introduction to Geometry

Triangles & Quadrilaterals

Transformations

Circle Basics

Circle Theorems

Measurements & Units

Calculating Area

Triangle Formulae

3D Shapes

Vectors

Probability

Introduction to Probability

Representing Probabilities

Probability Calculations

Statistics

Introduction to Statistics

Charts & Diagrams

Comparing Datasets

Number

Using Numbers

Fractions, Decimals & Percentages

Powers & Roots

Accuracy

Algebra

Introduction to Algebra

Manipulating Algebra

Proofs & Functions

Straight Line Graphs

Common Graphs

Transformations & Tangents

Properties of Graphs

Solving Equations

Inequalities

Sequences

Ratio

Ratios in Practice

Manipulating Ratios

Percentage & Interest

Proportion

Gradient

Geometry

Introduction to Geometry

Triangles & Quadrilaterals

Transformations

Circle Basics

Circle Theorems

Measurements & Units

Calculating Area

Triangle Formulae

3D Shapes

Vectors

Probability

Introduction to Probability