২০১৮১
There are 3 green , 4 orange and 5 white color bulbs in a bag. If a bulb is picked at random, what is probability of having either a green or a white bulb?
উত্তর
2/3
২০১৮২
P, Q, and R start a business. P invests 3 times as much as Q invests and Q invests 2/3 rd as much as R invests. Find the ratio of capitals of P, Q and R?
উত্তর
6 : 2 : 3
২০১৮৩
How many iron rods, each of length 7 m and diameter 2 cm can be made out of 0.88 \(m^{3}\) of iron?
উত্তর
400
২০১৮৪
A is three as old as B. C was twice -as old as A four years ago. In four years time, A will be 31. What are the present ages of B and C?
উত্তর
950
২০১৮৫
What will be simple interest for 1 year and 4 months on a sum of Tk. 25800 at the rate of 14% per annum?
উত্তর
Tk. 4816
২০১৮৬
A man took loan from a bank at the rate o f 12% p.a simple interest. After 3 years he had to pay Tk. 5400 interest only for the period. The principal amount borrowed by him was:
উত্তর
TK. 15,000
২০১৮৭
Tk. 385 has been divided among A , B,C in such a way that A receive 2/9th of What B and C together receive. Then A's share is?
উত্তর
TK. 70
২০১৮৮
In what time will the simple interest on Tk. 400 at 10% per annum be the same as the simple interest on TK. 1000 4 years at 4% per annum?
উত্তর
4 years
২০১৮৯
The total age of A and B is 12 years more than the total age of B and C.C is how many years younger than A?
উত্তর
12 years
২০১৯০
The ratio of quantity of water in fresh fruit to that of dry fruits is 7: 2. If 400 km of dry fruits contain 50 km of water then find the weight of the water in same fruits when they were fresh?
উত্তর
175 kg