Question

Answer these questions

Answer 1

5) Find the percentage of each of the following:-

viii) 24 out of 144

= 24 * 100 / 144
= 16.67 %

ix) 33 1/3 out of 100

33 1/3 = 33.33

= 33.33 * 100 / 100
= 33.33 %

x) 0.25 out of 2

= 0.25 * 100 / 2
= 12.25 %

xi) 150 ml out of 1 l

1 ml = 0.001 l
150 ml = 150 * 0.001 l

= 0.15 l
= 0.15 * 100 / 1
= 15 %

xii) 25 paise out of 10 rupees

1 paise = 0.01 rupee
25 paise = 0.25 rupee

= 0.25 * 100 / 10
= 2.5 %

6) Find:-

i) 25 % of 64

= (25 / 100) * 64
= 16

ii) 33 1/3 % of 456

33 1/3 % = 33.33 %

= (33.33 / 100) * 456
= 151.98

iii) 66 2/3 % of 567

66 2/3 % = 66.66 %

= (66.66 / 100) * 567
= 377.96

iv) 12 1/2 % of 24 rupees

12 1/2 % = 12.5 %

= (12.5 / 100) * 24
= 3 rupees

v) 20 % of 800 kg

= (20 / 100) * 800
= 160 kg

vi) 30 % of 70 kg

= (30 / 100) * 70
= 21 kg

vii) 45 % of 73 hours

= (45 / 100) * 73
= 32.85 hours

viii) 54 % of 25 m

= (54 / 100) * 25
= 13.5 m

ix) 27 % of 90 l

= (27 / 100) * 90
= 24.3 l

x) 12 % of 65 rupees

= (12 / 100) * 65
= 7.8 rupees

xi) 2.5 % of 500 m

= (2.5 / 100) * 500
= 12.5 m

x) 20 % of 5.125 kg

= (20 / 100) * 5.125
= 1.025 kg

7) Find the number:-

i) whose 10 % is 25

let the number be x
10 / 100 * x = 25
x = 25 * 100 / 10
x = 250

ii) whose 6 1/4 % is 2

6 1/4 = 6.25

let the number be x
6.25 / 100 * x = 2
x = 2 * 100 / 6.25
x = 32

iii) whose 57 1/2 % is 23 kg

57 1/2 = 57.5

let the number be x
57.5 / 100 * x = 23
x = 23 * 100 / 57.5
x = 40 kg

8) Find the number which is:-

i) 10 % more than 80

= 80 + (80 * 10 / 100)
= 80 + 8
= 88