Multiple choice

Raghu alone can finish a work in 60 days he work for 24 days and left. Then shekher completed the remaining work in 24 days . If both Raghu and shekher togheter work find in how many days work will be finish? रघु अकेले किसी कार्य को 60 दिन में पूरा कर सकता है वह 24 दिन कार्य करता है। फिर छोड़ कर चला जाता है। बचे हुए कार्य को शेखर 24 दिनों में पूरा कर देता है। यदि दोनों साथ मिलकर कार्य करे तो वही कार्य कितने दिनों में समाप्त होगा?

  1. 40 days/दिन

  2. 24 days/दिन

  3. 48 days/

  4. 36 days/दिन

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

Raghu's 1 day work = 1/60. In 24 days, Raghu completes 24/60 = 2/5 of the work. Remaining work = 1 - 2/5 = 3/5. Shekhar completes 3/5 work in 24 days, so Shekhar's 1 day work = (3/5)/24 = 1/40. Combined work per day = 1/60 + 1/40 = 2/120 + 3/120 = 5/120 = 1/24. Time to complete together = 24 days.