Bhanu spends 30% of his income on petrol on scooter 21% of the remaining on house rent and the balance on food. If he spends Rs.300 on petrol then what is the expenditure on house rent? Answers: A) 2287 B) 140 C) 128 D) 797 E) 147

Rationale: "given 30 % ( income ) = 300 ⇒ ⇒ income = 1000 after having spent rs . 300 on petrol , he left with rs . 700 . his spending on house rent = 21 % ( 700 ) = rs . 147 answer : e"
Answer: E