Fractions and Decimals - Exercise

NCERT Exemplar Solutions Class 7 Mathematics Solutions for Fractions and Decimals - Exercise in Chapter 2 - Fractions and Decimals

Question 3 Fractions and Decimals - Exercise

1/8 of a number equals $\frac{2}{5}\div\frac{1}{20}$ . What is the number?

Answer:

Let the number be x

ACQ,

$\frac{1}{8} \times x=\frac{2}{5} \div \frac{1}{20} \\ \Rightarrow \frac{x}{8}=\frac{2}{5} \times \frac{20}{1} \\ \Rightarrow \frac{x}{8}=8 \\ \Rightarrow x=64$

Therefore, the required number is 64 .

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Exercises

Fractions and Decimals - Exercise

Chapters

Integers

Fractions and Decimals

Data Handling

Simple Equations

Lines and Angles

Triangles

Comparing Quantities

Rational Numbers

Perimeter and Area

Algebraic Expressions

Exponents and Powers

Practical Geometry Symmetry and Visualising Solid Shapes