1) A monkey tries to ascend a greased pole 14 metres high. He ascends 2 metres in first minute and slips down 1 metre in the alternate minute. If he continues to ascend in this fashion, how long does he take to reach the top?

2) A man takes 8 hours to walk to a certain place and ride back. However, he could have gained 2 hours, if he had covered both ways by riding. How long would he have taken to walk both ways?

3) A man leaves a point P at 6 am and reaches the point Q at 10 am. Another man leaves the point Q at 8 am and reaches the point P at 12 noon. At what time do they meet?

4) Two places P and Q are 162 km apart. A train leaves P for Q and at the same time another train leaves Q for P. Both the trains meet 6 hours after they start moving. If the train travelling from P to Q travels 8 km/hr faster than the other train, find the speed of the two trains.

5) A person travelled 120 km by steamer, 450 km by train and 60 km by horse. It took 13 hours 30 minutes. If the rate of the train is 3 times that of the horse and 1.5 times that of the steamer, find the rate of horse, train and steamer per hour.

Which Of The Following Does Not Fit In The Series?

6) 5, 7, 13, 25, 45, 87, 117

7) 2, 3, 10, 15, 25, 35, 50, 63

8) 1, 2, 6, 144, 2880, 86400, 3628800

9) 1, 1.5, 3, 6, 22.5, 78.75, 315

10) 2, 1, 10, 19, 14, 7, 16