The base of a right prism is an equilateral triangle. If its height is one-fourth and each side of the base is tripled, then the ratio of the volumes of the old to the new prism is /

The ratio of inradius and circumradius of an equilateral triangle is:

If the length of a shadow of a pole on a level ground is twice the length of that pole, the angle of elevation of the sun is:-

P and Q together can do a job in 6 days. Q and R can finish the same job in 60/7 days. P started the work and worked for 3 days. Q and R continued for 6 days to finish the work. Then the difference of days in which R and P can complete the job alone is 

What will be the compound interest on a sum of Rs. 21000 for 2 years at the rate of 14.28% per annum when interest is compound yearly?

Directions: Read the following table and answer the questions below it:

What was the percentage increase of disbursement of loans of all banks together from 1997 to 1998? 

A passenger train leaves Calcutta at 4 PM and travels at the rate of 30 kilometres an hour. The mail train leaves Calcutta at 9 PM and travels, on a parallel line of rails, at the rate of 45 km an hour, when will the second train overtake the first?