Question

raj reads 1/4of a book in 1hour.what fraction of the book will he read in 3 1/5hours

Answer 1

1hour =1/4
3 1/5 = 3 1/5 ×1/4
= 16/5 ×1/4
= 4/5

Answer 2

"The fraction of book he can read in $3\frac { 1 }{ 5 }$hours will be $\frac { 4 }{ 5 }$

Given:

$\frac { 1 }{ 4 }$ book in one hour

To find:

The fraction of book he can read in $3\frac { 1 }{ 5 } hours$

Here we have a hint like, in 1 hour he can read$\frac { 1 }{ 4 }$ of the book, that can be written as,

$1 hour = \frac { 1 }{ 4 }$

So, by using the hint we can calculate it for the whole $3\frac { 1 }{ 5 }$hours given,

$3 \frac{1}{5}=3 \frac{1}{5} \times \frac{1}{4}$

$=\frac{16}{5} \times \frac{1}{4}$

$= \frac { 4 }{ 5 }$"