Quantitative Aptitude - Arithmetic Ability Questions

The diameters of two cylinders are in the ratio 3:2 and their volumes are equal. The ratio of their heights is

Six years ago, the ratio of the two persons P and Q was 3 : 2. Four years hence the ratio of their ages will be 8 : 7. What is P's age?

In a week, how many times are the hands of a clock at right angles with each other?

ΔXYZ is right angled at Y. If m∠X = 30 deg, then find the value of (sinZ + √3).

The co-ordinates of the centroid of a triangle ABC are (1 , -4). What are the co-ordinates of vertex C if co-ordinates of A and B are (3 , -4) and (0 , 5) respectively?

Given: 5x -3(2x-7) > 3x - 1 < 7 + 4x; then x can take which of the following values?

A car covers the first 30 km at a speed of 60 kmph and the next 20 km at 80 kmph. Find the average speed.

P and Q can do a project in 20 and 12 days respectively. In how many days can they complete 40% of the project if they work together?