**A.25 days**

B.10 days

C.8 days

D.6 days

## M and N working separately can complete a job in 6 and 12 hours respectively. If they work for an hour alternately M starting at 10:00 AM when will the job be done?

A.2:00 PM

B.8:00 PM

C.7:00 PM

**D.6:00 PM**

## 30 men can do a certain work in 15 days. They started working on the project but 5 of them leave after every five days. In how many days will the work be completed now?

**A.20 days**

B.22 days

C.25 days

D.18 days

## Two trains are moving in opposite directions at the speed of 50 and 70 km/ph. Their lengths are 150m and 100m. The time required for their crossing is:

A.5 seconds

** B.7.5 seconds**

C.40 seconds

D.none

## A train 100 meters long traveling at 48 km/h completely crosses a bridge in 30 seconds. How long is the bridge:

A.100m

B.150m

C.200m

**D.300m**

## A can complete a piece of work in 16 days and B can complete it in 20 days. They start working together. Two days before the completion of the work A leaves. Work is completed in

**A.10 days**

B.8 days

C.6.4 days

D.11 days

## Two trains traveling in the same direction at 40 and 22 km/hr completely pass each other in 1 minute. If the length of the first train is 125 meters what is the length of second train.

A.125

B.150

** C.175**

D.185