If one of the interior angles of a regular polygon is equal to 5/6 times of one of the interior angles of a pentagon, then the no. of sides of the polygon.

When the average age of husband, wife and their son was 42 years, the son got married and a child was born just one year after marriage. When the child turned to be 5 years, the average age of the family becomes 36 years. What was the age of daughter-in-law at the time of marriage?

A car worth Rs 30,000 was sold by A to B at 10 % profit. B sold the car back to A at 5 % loss. In the entire transaction.

A and B started a business with Rs 20,000 and Rs. 35,000 respectively. They agreed  share the profit in the ratio of their capital. C joined the partnership with the condition that A, B and C will share profit equally and pay Rs. 220000 as premium for this, to be shared between A and B. In what ratio this premium is to be divided between A and B?

A tower standing on a horizontal plane subtends a certain angle at a point 160 cm a part from the foot of the tower. On advancing 100 meter towards the tower is found to subtend an angle twice as before. The height of tower is__

A right circular cylinder is formed by rolling a rectangular sheet of metal of length 44 cm and breath 20 cm along its length. The volume of cylinder is_

The speed of a bus Excluding stoppages, is 80 kmph and including stoppages, it is 72 kmph. For how many minutes does the bus stop per hour?

In a circle, PQ is diameter, RS is chord of length equal to radius of circle. PR and QS when produced intersect at point T. Find the ∠PTQ?