১৩৬৬১
A man's speed with the current of a river is 15 km/hr and the speed of the current is 2.5 km/hr. What is the man's speed against the current?
উত্তর
10 km/hr
১৩৬৬৪
On dividing a number by 5, we get 3 as remainder. What will be the remainder when the square of the number is divided by 5?
উত্তর
4
১৩৬৬৫
A starts business with Tk 3500 and after 5 months, B joins with A as his partner. After a year, the profit is divided between A and B in the ratio 2 : 3. What is B's contribution, in Tk. in the capital?
উত্তর
9000
১৩৬৬৬
Two 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
১৩৬৬৭
In a school, students may bring breakfast, buy it, or may not eat breakfast. If 1/4 of the students bring breakfast, 1/7 don't eat breakfast, and 187 buy it, how many students bring breakfast?
উত্তর
77