S.chand class 6 Mathematics Chapter 9 Exercise 9A

 Exercise 9A

Question 1

Express the following as per cent.

(i) $\frac{9}{100}$

(ii) $\frac{14}{100}$

(iii) $\frac{37}{100}$

(iv) $\frac{81}{100}$

(v) $\frac{35}{100}$

Question 2

Express the following as a fraction in its lowest terms.

(i) $40 \%$

(ii) $37 \frac{1}{2} \%$

(iii) $125 \%$

(iv) $62.5 \%$

(v) $18.75 \%$

Question 3

Convert the following into decimal fractions.

(i) $43 \%$

(ii) $7 \%$

(iii) $140 \%$

(iv) $5.74 \%$

Question 4

Express as a percentage.

(i) $\frac{3}{4}$

(ii) $\frac{11}{25}$

(iii) $\frac{7}{8}$

(iv) $2 \frac{3}{16}$

(v) $\frac{33}{40}$

Question 5

Convert the following decimals into percentages.

(i) $0.58$

(ii) $0.6$

(iii) $2.05$

(iv) $7.185$

(v) $0.001$

Question 6

Find the value of

(i) $25 \%$ of 720

(ii) $125 \%$ of 80

(iii) $12 \%$ of $18.6 \mathrm{~kg}$

(iv) $40 \%$ of ₹ 60

(v) $0.4 \%$ of $1 \mathrm{~m}$

Question 7

What per cent is

(i) 6 paise of $₹ 6$

(ii) $7 \mathrm{~m} \mathrm{} 25 \mathrm{~cm}$ of $58 \mathrm{~m}$

(iii) $2 \frac{1}{2}$ of 10

(iv) $350 \mathrm{~g}$ of $1 \mathrm{~kg}$

(v) $800 \mathrm{~m}$ of $5 \mathrm{~km}$

Question 8

Find the number whose

(i) $60 \%$ is 36

(ii) $16 \frac{2}{3} \%$ is 3 .

(iii) $21 \%$ is 42

(iv) $84 \%$ is 42

Question 9

Increase

(i) ₹ 120 by $40 \%$

(ii) 450 by $10 \%$

(iii) $6 \mathrm{~kg}$ by $8 \%$

(iv) $50 \mathrm{~m}$ by $150 \%$

Question 10

Decrease

(i) 600 by $25 \%$

(ii) ₹ 20 by $10 \%$

(iii) 300 by $30 \%$

(iv) ₹ 80 by $20 \%$

Question 11

Find:

(i) $60 \%$ of 1 litres in $\mathrm{mL}$.

(ii) $66 \frac{2}{3} \%$ of 1 day in hours.

(iii) $0.25 \%$ of 120

Multiple Choice Question (MCQs)

Tick (✔) the correct option.

Question 12

The value of which of the following fractions is more than $40 \%$ ?

(a) $\frac{1}{4}$

(b) $\frac{3}{8}$

(c) $\frac{2}{11}$

(d) $\frac{2}{3}$