Quantitative Aptitude - Arithmetic Ability Questions

Find the approximate simple interest on Rs. 2000 from March 9, 2010 to May 21, 2010 at 8.25% per annum.

If the 1st and the 3rd term of an arithmetic progression are -10 and -4, what is the 12th term?

ΔABC is right angled at B. BD is an altitude. DC = 9 cm and AC = 25 cm. What is the value of BC (in 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

Find the total surface area (in cm2) of a cube of side 3.5 cm.

Two circles touch each other externally. The distance between their centres is 7 cm. If the radius of one circle is 4 cm, then the radius of the other circle will be

The square of 11111 is

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.