A can contains a mixture of two liquids A and B in the ratio 7:5. When 9 litres of mixture are drained off and the Can is filled with B, the ratio of A and B becomes 7:9. How many litres of liquid A was contained by the Can initially?

In 16 minutes, the minute had gains over the hour hand by

If a , b , c are in AP and x , y and z are in GP , then $${x^{b-c}.{y^{c-a}.z^{a-b}=?}}$$

A cuboidal block of 6 cm × 9 cm ×12 cm is cut into exact number of equal cubes. The least possible number of cubes will be:

PT is a tangent at the point R on a circle with centre O. SQ is a diameter, which when produced meets the tangent PT at P. If ∠SPT=32°, then what will be the measure of ∠QRP?

The product of two consecutive odd numbers is 399. Find the lower of them.

A regular hexagon has a side of 4 cm. Find its area. (in sq. cm)

A man walking at a speed of 5 km / h crosses a bridge in 15 minutes, find the length of the bridge.