৩০৯০১
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?
উত্তর
38 years
৩০৯০২
What will be the least number which when doubled with be exactly divisible by 12, 18, 21 and 30?
উত্তর
630
৩০৯০৩
If 4 (A's capital) = 6 (B's capital)=10(C's capital), then out of a profit of TK. 4650, C will receive:
উত্তর
TK. 900
৩০৯০৪
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:
উত্তর
500
৩০৯০৫
How many times in a day, are the hands of a cock in straight line but opposite in direction?
উত্তর
22
৩০৯০৭
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
৩০৯০৮
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.
উত্তর
4 : 3
৩০৯০৯
If 0.4 of a number is equal to 0.06 of another number, the ratio of the numbers is:
উত্তর
3:20
৩০৯১০
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?
উত্তর
TK.1,07,500