71st &72nd

71.
There are 15 poles in a straight line each equally placed from
eachother. The time taken to reach the 10th pole after a man starts
walking from 1st pole is 10 seconds. What is the time required to
reach 15th pole.
72.
)A prisoner tried to escape from the jail in five different ways in

five consecutive days from monday to friday, but in vain.

The five ways are....

(a)Tried to bribe the jailer of the prison.

(b)Tried to escape in the giuse of a jailer.

(c)Tried to dig a tunnel in the jailcell.

(d)Escape in the guise of visitor to the jail.

(e)Escape in the guise of work party who came to work in the jail.

Condition:

1-Two days before he tried to dig the tunnel he tried to bribe the jailer.

2-It was not monday or friday when he tried to escape in the guise of a

visior to the jail.

3-The day before he tried to escape in the guise of a jailer he tried to

bribe the Jailer.

4-The day after he tried to escape in the guise of a visitor to the jail,

he tried to escape in the guise of work party person.

On each of the five days which method he used to escape.