Question

A man spends 12% of his income on food, 18% on children's education, and 70% of the remaining on house rent. What percentage of his income is he left with?

• A. 21%
• B. 30%
• C. 20%
• D. 28%

Answer 1

Answer:

A. 21%

Let total income = 100%

• Food = 12%

• Education = 18%
  Total spent so far = 30%

Remaining = 100 − 30 = 70%

He spends 70% of this remaining on rent:
$70\% \times 70 = 49\%$
Total expenditure = 30 + 49 = 79%

Remaining income =
100 - 79 = 21%