Question

A man spend 2/5 of his salary on food and 3/10 of the remaining on house rent,electricity,etc.What fraction of his salary is still left with him?

Answer 1

Answer:

a man spend 2/5 salary on food and 3/10 of the remaining on house rent. what fraction of his salary is still left with him. Conveyance = 100 * 1/8 = 12.

Answer 2

Answer:

Step-by-step explanation:

Let salary = $x$

Amount spent for food = $\frac{2}{5}$ of $x$

                                       = $\frac{2}{5}$ $x$

Amount on house =  $\frac{3}{10}$ of $x$

                                      =   $\frac{3}{10}$ $x$

Fraction of salary left =  Salary - Total amount spent

then,

$x$ - ( $\frac{2}{5}$ $x$ +  $\frac{3}{10}$ $x$ )

LCM of 5 and 10 is 10

=  $x$ - ( $\frac{4}{10}$ $x$ +  $\frac{3}{10}$ $x$ )

=  $x$ -  $\frac{7}{10}$ $x$

=   $\frac{3}{10}$ $x$

Therefore, the man has  $\frac{3}{10}$ of his salary left with him