Multiple choice

P is twice as good as Q and together they finish a piece of work in 36 days. The number of days taken by P alone to finish the work? P, Q से दोगुना अच्छा है और एकसाथ वे 36 दिनों में एक काम पूरा करते हैं। कार्य समाप्त करने के लिए P द्वारा अकेले लिए गए दिनों की संख्या है?

  1. 48

  2. 60

  3. 54

  4. 72
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

P is twice as good as Q means P's efficiency = 2 × Q's efficiency. Together they finish in 36 days. Combined efficiency = P + Q = 2Q + Q = 3Q. If 3Q takes 36 days, Q alone would take 36 × 3 = 108 days. P alone (who is twice as good) would take 108/2 = 54 days.

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