SSC CGL 20161)

A and B together can do a piece of work in 9 days. If A does thrice the work of B in a given time, the time A alone will take to finish the work is

Correct Option: A

12 days

SSC CGL 20162)

In what time will a 100 metre long train running with a speed of 50 km/hr cross a pillar

Correct Option: B

7.2 sec

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