The average age of 8 men is increased by 2 years when one of them whose age is 24 years is replaced by a woman. What is the age of the woman ?
50% of a% of b is 75% of b% of C. Which of the following is C ?
A makes an article for Tk. 120 and sells it to B at a profit of 25% B sells it to C who sells it for Tk. 198 making a profit of 10%. What profit percent did B make ?
A sum of Tk. 600 amounts to Tk. 720 in 4 years at Simple Interest. What will it amount to if the rate of interest is increased by 2% ?
The sum of first five prime numbers is :
Which is the following is equal to 3.14 * 10^6 ?
If x=1-q and y=2q+1, then for what value of q,x is equal to y ?
3 years ago, the average age of a family of 5 members was 17 years. A baby having been born the average age of the family is the same today. The present age of the baby is
There are two numbers such that the sum of twice the first and thrice the second is 39. While the sum of thrice first and twice the second is 36. The larger of the two is :
In an election, 30% of the voters voted for candidate A whereas 60% of the remaining voted for candidate B. The remaining voters did not vote. If the difference between those who voted for candidate A and those who did not vote was 1200, how many individuals were eligible for casting vote in that election ?
A shopkeeper expects a gain of 22.5% on his cost price. If in a week, his sale was of Tk. 392, what was his profit ?
The least whole number which when subtracted from both the terms of the ratio 6 : 7 gives a ratio less than 16:21 is :
10 man, working 6 hours a day can complete a work in 18 days. How many hours a day must 15 men work to complete the same work in 12 days ?
Two taps A and B can fill a tank in 5 hours and 20 hours respectively. If both the taps are open then due to a leakage, it took 30 minutes more to fill the tank. If the tank is full, how long will it take for the leakage alone to empty the tank ?
A train can travel 50% faster than a car. Both start lost about 12.5 minutes while stopping at the stations. The speed of the car is :
A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is :
If 2n=64 then the value of n is:
If y = 5, then what is the value of 10y y3-y2 ?
The sum of two numbers is equal to thrice difference. If the smaller of the numbers is 10 find the other number.
A person was asked to state his age in years. His reply was, 'Take my age three years hence, multiply it by 3 and then subtract three times my age three years ago and you will know how old I am' What was the age of the person ?