১১৬৫১
How many times in a day, are the hands of a clock in straight line but opposite in direction?
উত্তর
22
১১৬৫৩
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?
উত্তর
12
১১৬৫৫
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?
উত্তর
7
১১৬৫৬
Find the smallest number by which 5808 should be multiplied so that the product becomes a perfect square.
উত্তর
11
১১৬৫৭
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.?
উত্তর
TK. 22.50
১১৬৫৯
If 0.4 of a number is equal to 0.06 of another number, the ratio of the numbers is :
উত্তর
3 : 20
১১৬৬০
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?
উত্তর
37500 sq.m