A solid right circular cone of radius 10 cm and height 8 cm is put inside a cylindrical vessel of radius 11 cm and height 9 cm. How much water in cubic cm will be required to fill the cylindrical vessel completely?

Product of digits of a 2-digit number is 24. If we add 45 to the number, the new number obtained is a number formed by interchange of the digits. What is the number?

Mahmood can do a piece of work in 40 hours. If he is joined by Janaki who is 50% more efficient, in what time will they together finish the work?

Area of _____ equals square of its side.

If x - y = -8 and xy = 45, then (x2 + y2) is

If 3x-5(x-1) > 2x - 1 < 2 + 4x; then x can take which of the following values?

If 1/√(1 + cot2A) = x, then value of x is

A vendor buys apples at the rate of 21 for Rs 7 and sells at the rate of 5 for Rs 2. What will be the result?