model 3 fraction of numbers Section-Wise Topic Notes With Detailed Explanation And Example Questions

Question : 1

$1/2$ of $3/4$ of a number is 2$1/2$ of 10. What is the number?

a) 56

b) 66$2/3$

c) 60

d) 50

Question : 2

A tree increases annually by $1/8$th of its height. By how much will it increase after 2 years, if it stands today 64 cm high?

a) 81 cm

b) 75 cm

c) 74 cm

d) 72 cm

Question : 3

A boy was asked to find the value of $3/8$ of a sum of money. Instead of multiplying the sum by $3/8$ he divided it by $3/8$ and then his answer exceeded by Rs.55. Find the correct answer ?

a) Rs.1,320

b) Rs.64

c) Rs.24

d) Rs.9

Question : 4

A boy was asked to find $3/5$ of a fraction. Instead, he divided the fraction by $3/5$ and got an answer which exceeded the correct answer by $32/75$ . The correct answer is

a) $2/15$

b) $2/25$

c) $6/25$

d) $3/25$

Question : 5

A boy on being asked what $6/7$ of a certain fraction was, made the mistake of dividing the fraction by $6/7$ and so got an answer which exceeded the correct answer by $13/70$. Find the fraction–

a) $7/9$

b) $4/5$

c) $3/5$

d) $2/3$

Question : 6

Half of 1 per cent written as a decimal is—

a) 0.005

b) 0.05

c) 0.02

d) 0.2