Multiple choice

A, B and C earns total Rs.1450 and spends 60%, 65% and 70% of own’s income respectively. If his savings in the ratio of 14:21:15. Then find the salary of B? A, B एवं C मिलकर कुल रु 1450 कमाते है एवं अपने वेतनों का क्रमशः 60%,65% एवं 70% खर्च करते हैं | यदि उनके द्वारा किये गए बचत का अनुपात 14:21:15 है,तो B का वेतन है |

  1. Rs./रू.450

  2. Rs./रू.500

  3. Rs./रू.600

  4. Rs./रू.750
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C Correct answer
Explanation

Let A, B, C's savings be 14x, 21x, 15x respectively. If A saves 40% (spends 60%), income = 14x/0.4 = 35x. If B saves 35% (spends 65%), income = 21x/0.35 = 60x. If C saves 30% (spends 70%), income = 15x/0.3 = 50x. Total = 145x = 1450, so x = 10. B's salary = 60x = Rs. 600.

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