Question

Out of his total mothly income, Rahul spends 30% on house rent and 60% of the rest on the household expenses. If he saves Rs. 6300 per month, what is his total monthly income ?

Answer 1

as 90% is used, 10% is saved
saved amount is 6300
10% of x = 6300
10/100*x=6300
x/10=6300
x=63000

Answer 2

Let total income=Rs.100
Money spent on house rent= 100*30/100=30
Money left=100-70=30
Money spent on household expenses =70*60/100=42
Money left=70-42=28
Now, if saving is 28,the total income is 100
if saving is 1, then total income =100/28
If saving is 6300,then total income is 100/28*6300=22500Rs.