Ritu and Mona can finish painting a house
Ritu and Mona can finish painting a house together in 18 days. Ritu alone would take 27 days to finish the painting. How long will it take Mona to finish the painting on her own?
रितु और मोना मिलकर एक घर की पेंटिंग 18 दिनों में कर सकती हैं। रितु को अकेले पेंटिंग पूरी करने में 27 दिन लगेंगे। मोना को अकेले पेंटिग पूरी करने में कितना समय लगेगा?
Detailed Solution & Logic
Correct Answer:
54 days
Let total work = 1
Ritu + Mona 1 day work =$ \dfrac{1}{18} $
Ritu's 1 day work = $ \dfrac{1}{27} $
Mona's 1 day work = $ \dfrac{1}{18} - \dfrac{1}{27} $
$ = \dfrac{3 - 2}{54} = \dfrac{1}{54} $
Time taken by Mona alone = 54 days
Answer = 54
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