I forgot the last digit of a 7 digit telephone number. If one randomly dial the final three digits after correctly diall…

The difference between simple and compound interest for the fourth year is Rs. 7280 at 20% p.a. What is the principal su…

A clock loses 1% time during the first week and then gains 2% time during the next one week. If the clock was set right …

A is as much younger than B as he is older than C. If the sum of the ages of B and C is 50 years, what is exactly&n…

What annual installment will discharge a debt of Rs 1092 due in 3 years at 12% simple interest?

I walk a certain distance and ride the car back taking a total time of 33 Minutes. I could walk both sides in 45 mi…

The length of a rectangle is twice its breadth. If its length is decreased by 5 cm and breadth is increased by 5 cm, the…

Find the speed of the boat in still water, if a boat covers a certain distance upstream in 2 hours, while it c…