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 the difference between the sum and difference of the digits of the number if the ratio between the digits the number is 1 : 2?
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 for 5 months and Z, Tk 10,000 for 3 months. X wants to be the working member for which, he was to receive 5% of the profits. The profit earned was Tk 7,400. What is the share of Y in the profit?
Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is ---
Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
Albert invested an amount of Tk 8,000 in a fixed deposit scheme for 2 years at compound interest rate 5% per annum. How much amount will albert get on maturity of the fixed deposit?
Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is ----
which of the following statements is incorrect?
Which of the following number replaces the question mark?
A number is decreased by 10% and then increased by 10% . The number so obtained is 10 less than the original number. what was the original number ?
In a fraction , if numerator is increased by 40% and denominator is increased by 80% then what fraction of the original is the new fraction ?
In an examination , 34% of the students failed in Mathematics and 42% failed in English . If 20% of the students failed in both the subjects , then the percentage of students who passed in both the subjects was:
A sum invested at 5% simple interest per annum grows to Tk. 504 in 4 years The same amount at 10% simple interest per annum in 212 years will grow to :
A person borrows Tk. 5000 for 2 years at 4% p.a. simple interest . He immediately lends to another person at 614% p.a. for 2 years .Find his gain in the transaction per year .
A contractor employed 30 men to do a piece of work in 38 days. After 25 days , he employed 5 men more and the work was finished one day earlier. How many days he would have been behind, if he had not employed additional men?
A garrison of 500 men had provisions for 27 days . After 3 days a reinforcement of 300 men arrived . For how many more days will the remaining food last now?
If 8 men can reap 80 hectares in 24 days , then how many hectares can 36 men reap in 30 days ?
A man completes 45 of a job in 10 days . At this rate, how many more days will it take him to finish the job?
If the radius of a circle is increased by 6% , then the area is increased by :
If the height of a triangle is decreased by 40% and its base is increased by 40% , what will be the effect on its area?