Kate went to a bank to withdraw ^@ $ 750^@. She asked the cashier to give ^@$ 50^@ and ^@$ 100^@ notes only. Kate got ^@10^@ notes in all. Find the number of ^@$ 50 ^@ and ^@$ 100^@ notes she received.
If the 10th element of an arithmetic progression is -125 and the difference between the 41st element and the 26th element is -255, then what is the first element of the AP?
If ^@ x = r{\space} sin{\space} \alpha {\space}cos{\space}\beta^@, ^@y = r{\space} sin {\space}\alpha{\space} sin{\space}\beta^@ and ^@z = r{\space} cos {\space}\alpha^@, then
^@{\space}x^2 + y^2 + z^2 ^@ is equal to:
A wooden pillar consists of a right circular cylinder and a cone as shown in the picture. The radius of the cone and the cylinder is 3 cm. The height of the cylinder and the cone is 18 cm and 9 cm respectively. If the density of wood is 2 grams per cm3, find the weight of the wooden pillar. (Assume π =
A box contains 5 green and 6 pink balls. Caitlin takes out a ball, puts it back, and then takes out another ball. What is the probability that both balls were green?
In this diagram, the triangle represents men, the square represents inspectors and the circle represents tall. Find the number of men who are tall but not inspectors.