The ratio of income of Jitendra and Narendra is 4 : 7, and the ratio of their expenditure is 6 : 5 , respectively. If Jitendra saves Rs.400 out of Rs.2,800 incurred, then find the savings of Narendra.
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Correct answer: A
Explanation
The correct answer is option 1 i.e. Rs.2,900.
Jitendra's expenditure = 2800 - 400 = 2400
Let Jitendra's income = 4x and Narendra's income = 7x
So, 4x = 2800
⇒ x = 2800/4 = 700
⇒ 7x = 7 × 700 = 4900
Let, Jitendra's expenditure = 6y and Narendra's expenditure = 5y
So, 6y = 2400
⇒ y = 2400/6 = 400
⇒ 5y = 5 × 400 = 2000
Narendra's savings = 4900 - 2000 = 2900
Therefore, the savings of Narendra are Rs. 2,900.