Out of her total income Mrs Sharma spends 20% on house rent and 70% of the rest on household expenditure. If she saves rs 1800, what is the total income?
she saves 1800 ie 10 %
her income = x
10% of x =1800
10/100*x=1800
x=1800x100/10
x=180000/10
x=18000
her income is Rs 18000