SSC CGL Tier II 21 Sep 2014 Paper

Question : 62 of 100

Marks: +1, -0

Raj and Ram working together do a piece of work in 10 days. Raj alone can do it in 12 days. Ram alone will do the work in

Solution:

(4) (Raj + Ram)’s 1 day’s work

=1/10

Raj’s 1 day’s work

=1/12

∴ Ram’s 1 day’s work

= {1}/{10}- {1}/{12}= {6-5}/{60}= {1}/{60}

∴ Required time = 60 days

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