Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is ---

The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is t...

X, Y and Z jointly started a business. It was agreed that X would invest Tk 6,500 for 6 months, Y, Tk 8,400 fo...

Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Th...

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the t...

Albert invested an amount of Tk 8,000 in a fixed deposit scheme for 2 years at compound interest rate 5% per a...

Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. A...