P and Q can do a work in 12 days. Q and R can do the same work in 16 days, and R and P can do it in 24 days. Find the time in which P, Q and R can finish the work together.

If the price of a sugar is raised by 25%, then by how much per cent should a person reduce his consumption of sugar, so that his expenditure remains same?

A. 25%

B. 50%

C. 20%

D. 12.5%

A town has population of 50,000 in 1988. In one year i.e. by 1989 it increased by 25%. Next year i.e. in 1990, it decreased by 30%. The next year in 1991 there was an increase of 40%. What is the population at end of 1991?

A. 60250

B. 62250

C. 66550

D. 61250

How to divide 3395 in ratio of 42 : 32 : 23?

A. 1470, 1120 and 805

B. 1550, 1235 and 610

C. 1245, 1150 and 1000

D. 1764, 1022 and 529

A sum becomes Rs. 3000 at the rate of 12% per annum (simple interest). The same sum becomes Rs. 3300 at the rate of 15% per annum (simple interest) in the same duration. Find the sum and the duration.

A. Rs. 2000 and 20 years

B. Rs. 1900 and 8.25 years

C. Rs. 1500 and 7 years

D. Rs. 1800 and 5.5 years

Find the principal amount invested if the difference between Compound Interest and Simple Interest obtained for 3 years at rate of interest of 25% is Rs. 320?

A. Rs. 1550

B. Rs. 1575.38

C. Rs. 1525.50

D. Rs. 1545.78