Quantitative Aptitude - Arithmetic Ability Questions

Find the length of a transverse common tangent of the two circles whose radii are 3.5 cm, 4.5 cm and the distance between their centres is 10 cm.

Two pipes namely A,B can fill a sump in 25 minutes and half an hour respectively and a pipe C can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity off the tank is

The heights of a cone and a cylinder are equal. The radii of their bases are in the ratio 2:1. The ratio of their volumes is:

What is the obtuse angle formed by the hands of a clock when the time in the clock is 2:30?

The number of sides of a regular polygon whose exterior angles are each 72 deg is

In ΔPQR, S and T are points on side PQ and PR respectively. ST is parallel to QR. If S divides PQ in the ratio 4:3 and length of QR is 4.9 cm, find ST?

The mean of the data 3, 10, 10, 4, 7, 10, 5 is

How many times does the number 5 occur in the range of numbers from 1 to 100?