Question

rohit donated 1/5 of his monthly income to a NGO working for the education of the girl child,spent 1/4 of his salary, on food 1/3 on rent and 1/15 on other expenses. he is left with Rs 9000.

Answer 1

If you want to know what is the total monthly income then
Find the LCM of denominators In this case it is 60 The expressions will be
12/60, 15/60, 20/60 and 4/60
let the full income be X
then A.T.P
9000+(12X/60)+(4X/60)+(15X/60)+(20X/60)= X
On solving this you get
X=60,000
Ans:60000

Answer 2

If you want to know what is the total monthly income then
Find the LCM of denominators In this case it is 60 The expressions will be
12/60, 15/60, 20/60 and 4/60
let the full income be X
then A.T.P
9000+(12X/60)+(4X/60)+(15X/60)+(20X/60)= X
On solving this you get
X=60,000