A train 800 meters long is running at a speed of 78 km/hr . If it crosses a tunnel in 1 minute, then the length of the tunnel ( in meters ) is :
If 4 (A's capital) = 6 (B's capital)=10(C's capital), then out of a profit of TK. 4650, C will receive :
How many times in a day, are the hands of a cock in straight line but opposite in direction ?
Tow numbers A and B are such that the sum of 5% of A and 4%of B is two-third of the sum of 6% of A and 8%of B. Find the ratio of A : B .
If the number 5 * 2 is divisible by 6, then * = ?
3 pumps , working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day ?
Which of the following trains is the fastest ?
A student was asked to find the arithmetic mean of the numbers 3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14, and x. He found the mean to be 12. What should be the number in place of x ?
Find the smallest number by which 5808 should be multiplied so that the product becomes a perfect square .
The interest on a certain deposit at 4.5% p.a. is TK. 202.50 in one year. How much will the additional interest in one year be on the same deposit at 5% p.a. ?
2-[ 2 - { 2 - 2 ( 2 +2 ) } ] = ?
If 0.4 of a number is equal to 0.06 of another number, the ratio of the numbers is :
The breadth of a rectangular field is 60% of its length . If the perimeter of the field is 800 m, what is the area of the field ?
Peter purchased a machine for TK. 80,000 and spent TK. 5,000 on repair and TK. 1,000 on transport and sold it with 25% profit , At what price did he sell the machine ?
A takes twice as much time as B or thrice as much time as C to finish a piece of work . Working together , they can finish the work in 2 days . B can do the work alone in :
Which of the following fractions is greater than 3/4 and less than 5/6 ? ?
Arrange the following in a meaningful sequence :
If X is brother of son of Y's son, then how is X related to Y ?
2, 5, 9, 19, 37, ?
When you see a blind man trying to cross the road , you
Z, U, Q, ?, L
Which letter in the alphabet is as far from G as T is from M ?
Among P, Q, R, S and T, Q is the second tallest and S is immediate taller than the shortest . Who among them is in the middle when they stand in the order of their heights ? (1). T is not the shortest (2). R is taller than S but shorter than Q . (3). P ranks third in height above S when all are arranged in the order of height .
Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in:
.
How many days are there in x weeks x days?
The total of the ages of Ali , Gazi and Masud is 93 years. Ten years ago, the ratio of their ages was 2 : 3 : 4 . What is the present age of Masud ?
What will be the least number which when doubled with be exactly divisible by 12, 18, 21 and 30 ?
Rahim ranks seventh from the top and twenty-sixth from the bottom in class . How many students are there in the class ?