Quantitative Aptitude - Arithmetic Ability Questions

Out of three pipes the first two can fill an empty tank in 9 and 18 hours, respectively while the third can drain the filled tank in 15 hours. If all the three pipes are opened when the tank is empty, after how many hours will the tank be full?

Calculate the distance (in cm) of the chord from the centre of the circle, if the chord of length 48 cm is drawn in the circle of radius 25 cm.

If the angles of a triangle are in the ratio of 2 : 5 : 8, then find the value of the smallest angle.

A girl walking at the speed of 2 km/hr covers a certain distance in 7 hours 30 minutes. If she covers the same distance by cycle in 5 hours, then what is the speed (in km/hr) of cycle?

The two chords AB and CD of a circle intersect at point P, such that BP=4 cm, PD=5 cm, and CP=8 cm. find the length of chord AB.

The area of a rectangle is 448 sq.m. If the length is more than the breadth by 12%, find the breadth.

What is the sum of the measures of all the interior angles of a regular polygon of 6 sides?

Assuming that the numbers in each of the following figures follow a similar pattern, select the option that can replace the question mark in figure B.