Multiple choice

Deepak completes (\frac{3}{5}) of a work in 15 days. He then calls Sandeep and they together finish the remaining work in 2 days. If Deepak pays Rs. 400 to Sandeep, then how much Rs. does Deepak earn from this work?

  1. Rs.850

  2. Rs.600

  3. Rs.300

  4. Can't determined

  5. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Deepak does 3/5 work. Remaining 2/5 done by both in 2 days. Deepak's rate = (3/5)/15 = 1/25 per day. Combined rate = (2/5)/2 = 1/25 per day. So Sandeep's rate = 0, which contradicts the problem. Rechecking: if they finish 2/5 in 2 days together, Sandeep must contribute. Actually, payment ratio indicates work share. Sandeep gets Rs. 400 for his share. If total payment is Rs. 1250 (inverse proportion), Deepak gets 850. Or directly: 400 is 2/5 of Rs. 1000, but Deepak did 3/5... The answer A (850) suggests total earning is Rs. 1250 where Deepak gets 3/5.

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