১৩১৩১
The height of a cylinder is four times the radius of the cylinder. If the volume of the cylinder is 256π cm3, what is the radius of the cylinder?
উত্তর
4 cm
১৩১৩২
A sum of money placed at compound interest doubles itself in 4 years. In how many years will it amount of 8 times itself?
উত্তর
12 years
১৩১৩৩
If principal P becomes Q in 2 years when interest R% is compounded half-yearly. And if the same principal P becomes Q in 2 years when interest S% is compound annually, then which of the following is true ?
উত্তর
R < S
১৩১৩৫
If angle B of isosceles triangle ABC is a right angle, what is the tangent of angle A?
উত্তর
0
১৩১৩৬
If the total surface area of a hemisphere be 36π sq.cm, then its radius is-
উত্তর
2√3
১৩১৩৭
If a = √2 + 1 and b = √2 - 1, then the value of {1/(a + 1)} + {1/(b + 1)} is
উত্তর
0
Rectangular sheet of paper, 10cm long and 8cm wide has squares of side 2cm cut from each of its corner. The sheet is then folded to form a tray of depth 2cm.
১৩১৩৯
What is the volume of this tray?
উত্তর
48cm 3
A group of 20 friends formed an investment club, with each member contributing an equal amount to the general fund. The club then invested the entire fund, which amounted to 1 taka, in stock X. The value of the stock subsequently increased 40 percent, at that point the stock was sold and the proceeds divided evenly among the members.
১৩১৪০
How much money did each member of the club receive from the sale?
উত্তর
(7t/100)