Secondary School (English Medium) (5 to 8) Class 7 - CBSE Question Bank Solutions for Mathematics

Write the rational number whose numerator and denominator are respectively as under:

5 – 39 and 54 – 6

Write the rational number whose numerator and denominator are respectively as under:

(–4) × 6 and 8 ÷ 2

Write the rational number whose numerator and denominator are respectively as under:

35 ÷ (–7) and 35 – 18

Write the rational number whose numerator and denominator are respectively as under:

25 + 15 and 81 ÷ 40

Put the (✓), wherever applicable

150 students are studying English, Maths or both. 62 per cent of the students are studying English and 68 per cent are studying Maths. How many students are studying both?

A body floats `2/9` of its volume above the surface. What is the ratio of the body submerged volume to its exposed volume? Re-write it as a rational number.

729 = 3^—

432 = 2⁴ × 3^—

Fill in the blanks with <, > or = sign.

3² ______ 15

Fill in the blanks with <, > or = sign.

2³ ______ 3²

Fill in the blanks with <, > or = sign.

7⁴ ______ 5⁴

Fill in the blanks with <, > or = sign.

10,000 ______10⁵

Fill in the blanks with <, > or = sign.

6³ ______ 4⁴

4² is greater than 2⁴.

4⁹ is greater than 16³.

Find the value of 2⁵.

Find the value of (–3⁵).

Find the value of –(–4)⁴.

Express the following in exponential form:

3 × 3 × 3 × a × a × a × a