One cubic meter of iron weighs 7.800 kg. The weight of iron in a pipe of length 4 m, whose interior and exterior diameters measure 10 cm and 12 cm respectively, is nearly

The length of canvas 1.1 m wide required to build a conical tent of height 14m and the floor area \(346.5\ m^2\) is

In a flat race, A beats B by 15 m and C by 29 m. When B and C run over the same course together, B wins by 15 m. The length of the course is

In a rhombus, the length of the two diagonals are 40m and 30m respectively. Its perimeter will be

At what angle the hands of a clock are inclined at 15 minutes past 5 ?

A certain sum is lent at a certain rate of compound interest. It grows to 1.44 times its value in 2 years. If the same sum is lent at simple interest at the same rate, in how many years would it double itself?

The odd term out in the series 15, 16, 34, 105, 424, 2124, 12756 is

A man pays 40 times the annual rent to purchase a building. The rate % per annum he derives from his investment is

ABC is right angled triangle at C. Let BC = a, CA = b and AC = c and let p be the length of perpendicular from C on AB, then cp is equal to