Multiple choice

Annu and Bhanu undertook a piece of work for Rs 600.Annu alone can do it in 6 days while Bhanu alone can do it in 8 days. With the help of Charu, they can finish it in 3 days, Find the share of Charu? अन्नू और भानु ने 600 रुपये में एक कार्य करने का ठेका लिया। अन्नू अकेले इसे 6 दिनों में कर सकती है जबकि भानु अकेले इसे 8 दिनों में कर सकता है। चारु की मदद से, वे इसे 3 दिनों में खत्म कर सकते हैं, चारु का हिस्सा क्या होगा?

  1. Rs.80

  2. Rs.85

  3. Rs.70

  4. Rs.75

  5. None of these इनमें से कोई नहीं
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Annu's 1-day work = 1/6, Bhanu's 1-day work = 1/8. Working together for 3 days, they complete (1/6 + 1/8) × 3 = 7/8 of the work. Charu completes the remaining 1/8 in 3 days, so Charu's 1-day work = 1/24. Charu's 3-day contribution = 3/24 = 1/8 of work. Charu's share = 1/8 × 600 = Rs. 75.

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