TS ICET 23 May 2018 Shift 2 Paper

Question : 100 of 200

Marks: +1, -0

Of the two workers A works twice as fast as B. If A and B work together they require 12 days to complete a piece of work. How many days are needed if A alone works to complete the same work

Validate

Solution:

Let the time taken by A and B be x and 2x respectively
Given

1/x+1/{2x}=1/12

⇒3/{2x}=1/12

⇒x=18

days

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