Multiple choice

Either 8 men or 17 women can paint a house in 33 days. The number of days required to paint three such houses by 12 men and 24 women working at the same rate is: 8 पुरूष या 17 महिलाएं एक घर को 33 दिन में पेंट कर सकते हैं। 12 पुरूषों और 24 महिलाओं द्वारा ऐसे तीन घरों को उसी दर से पेंट करने के लिए अपेक्षित दिनों की संख्या है :

  1. 44

  2. 43

  3. 34

  4. 66

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

8 men or 17 women can paint 1 house in 33 days. So 1 man's rate = 1/(8×33) houses/day, 1 woman's rate = 1/(17×33) houses/day. Combined rate of 12 men and 24 women = 12/(264) + 24/(561) = 1/22 + 1/23.33 ≈ 1/11.16 houses/day. For 3 houses: Days = 3/(1/11.16) ≈ 33.48 ≈ 34 days.