Multiple choice

The two types of pulses were mixed in 2: 1 and a 10% profit was made by selling the mixture at ₹ 14 .30 per kilogram if the price per kilogram of the first pulse was ₹ 3 less than the second pulse. What is the price per kilogram?

  1. ₹13

  2. ₹17

  3. ₹18

  4. ₹15

  5. None of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let the price of second pulse be Rs x/kg. Then first pulse costs Rs (x-3)/kg. Mixed in 2:1 ratio, average cost = [2(x-3) + 1(x)]/3 = (2x-6+x)/3 = (3x-6)/3 = (x-2) Rs/kg. Selling at Rs 14.30 with 10% profit means cost × 1.10 = 14.30, so cost = 14.30/1.10 = Rs 13/kg. Equating: x-2 = 13, so x = 15 (price of second pulse). First pulse costs 15-3 = Rs 12/kg. The question asks for price per kg - Rs 15 is the second pulse price shown in the answer.