Mr. A spent 25% of his income on food, 10% on children education, 40% of the remaining he spent on entertainment and transport together and 30% on medical. He is left with an amount of Rs. 7800 after all the expenditure. What is Mr. A's monthly income?
Answer & explanation
Correct answer: option 1
Let total income = Rs. P
i) Total expenditure on food and Children education = 25 + 10 = 35%
Thus, ⇒ Remaining amount = P × 65%
ii) Total expenditure on Entertainment, transport and medical = 40 + 30 = 70% of remaining (i.e P × 65%)
Thus,
⇒ Remaining amount = (P × 65%) × 30%
ATQ,
⇒ (P × 65%) × 30% = 7800
⇒ (P × 1%) × 1% = 4
⇒ P = 40,000/-