Question

A man spends 40% of his income on food, 10% on clothes and 20% on house rent and saves the rest. what is the percentage of his saving? If his income is Rs 30,400,find the amount he saves

Answer 1

Expenditure on food + Expenditure on house rent + Expenditure on Entertainment + Expenditure on conveyance = Monthly Expenditure

i.e. 40% + 20% + 10% + 10% = 80%

Therefore, Radha's monthly expenses are 80% of her salary.

i.e. 100% - Monthly expenses = Monthly saving

So, 100% - 80% = 20%

Hence, Radha saving is 20% of her Monthly Salary … (1)

Radha's saving at the end of the month is 1500 rupees … ( given)(2)

So, Radha's Monthly Saving is 20%(from point 1) and her Monthly Saving is 1500( from point 2)

1500 rupees is 20% saving of Radha's Monthly Salary so 10% saving of Radha's salary is 750 rupees

i.e. 10% of Radha's Monthly saving × 10 = Radha's Monthly Salary.

750 × 10 = 7500 rupees

Therefore Radha's Monthly Salary is 7500 rupees.

Answer 2

Given:

Food = 40%

Clothes = 10%

House Rent = 20%

.

Find total:

Total = 40 + 10 + 20 = 70%

.

Find percentage saved:

Saved = 100 - 70 = 30%

.

Find amount saved:

30% x Rs 30 400 = 0.3 x 30400 = Rs9120

.

Answer: He saves 30% and that will be Rs 9120.