1.

Ram, Mohan and shyam can do a piece of work in 20, 30 and 60 days respectively. In how many days can Ram do the work if he is assisted by Mohan and shyam on every third day?1. 102. 153. 504. 55. 6

Answer» Correct Answer - Option 2 : 15

Given:

Ram = 20 days

Mohan = 30 days

Shyam = 60 days

Calculation:

Ram’s 2 days of work = (1/20) × 2

⇒ Ram’s 2 days work = 1/10

⇒ Work done by ram, mohan and shyam in 1 day = ((1/40) + (1/80) + (1/120))

⇒ Work done = 6/60

⇒ Work done = 1/10

⇒ Work done in 3 days = (1/10) + (1/10)

⇒ Work done in 3 days = 1/5

⇒ 1/5th work is done in 3 days

⇒ Total work done = 5 × 3

⇒ Total work done = 15 days

∴ Total work will be done in 15 days


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