If a man cycles at 10 km/hr , then he arrives at a certain place at 1 pm . If he cycles at 15km/hr, arrive at the same place at 11am . At what speed must he cycels to get there at noon ?

three meauring rods are 64 cm, 80 cm and 96 cm in length, What is the least length of cloth that can be measur...

A tank can be filled by a tap in 20 minutes and by another tap in 60 minutes . Both the taps are kept open for...

a box contains 20 electric bulbs , out of which 4 are defective . 2 bulbs are chosen at random from this box ....

There is a rectanguler parking lot with a length of 2x and a width of x. What is the ratio of the perimetr of...

The ratio of income of a to that of B is 7:5 and the expenditure of A to that of B is 3:2. If , at the end of...

An empty backet being filled with paint at a constant rate takes 6 min to be filled to 7/10 of its capacity ....