Multiple choice

42 men could finish a work in 28 days but when some more men joined the work was finished in less than 3/4th of the time. Find the number of more men joined. 40 आदमी किसी कार्य को 28 दिनों में पूरा कर सकते हैं लेकिन जब कुछ और आदमी कार्य में जुड़ जाते हैं तो कार्य पूर्व समय के 3/4 गुने समय से कम में पूरा हो जाता है। जुड़ने वाले अतिरिक्‍त आदमियों की संख्‍या ज्ञात करें।

  1. 12

  2. 13

  3. 14

  4. 15

  5. 17
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The problem has a discrepancy: English text says 42 men, Hindi text says 40 men. Solving with 42 men: total work = 42×28 = 1176 man-days. Work finished in less than 3/4 of 28 days = less than 21 days. For 21 days: men needed = 1176/21 = 56 men. Additional men = 56-42 = 14 men. This matches option C (14), confirming the English number (42) is correct.

Keep practicing — related questions