A spends 90% of his salary and B spends 85% of his salary. But savings of both are equal. Find the income of B, if sum of their incomes is Rs. 5000.  Choose the correct choice from the following choices: A) 2000 B) 2400 C) 2125 D) 2400 E) None
Explanation:   Let the incomes of A and B are x, y respectively.   Savings of A = (100 - 90)% (x) = 10% (x)   Savings of B = (100 - 85)% (y) = 15% (y)   Given, both saves equal amount.   Therefore, 10% (x) = 15% (y) ⇒xy=15%/10%=3/2   Therefore, x : y = 3 : 2   Hence, B's salary = 2/(2+3) x 5000 = Rs. 2000.   Correct Option: 2000
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A spends 90% of his salary and B spends 85% of his salary. But savings of both are equal. Find the income of B, if sum of their incomes is Rs. 5000.