১৯০৭১
A train 150 meters long crosses a pole in 15 seconds. What is the speed of the train in km/h?
উত্তর
36 km/h
১৯০৭২
The ratio of ages of A and B is 3:4. After 5 years, the ratio becomes 4:5. What is the present age of A?
উত্তর
15 years
১৯০৭৩
A seller sells a product at a profit of 20%. If he sold it for Tk. 100 more, profit would be 25%. What is the cost price?
উত্তর
Tk. 2000
১৯০৭৫
In a class of 50 students, 30 passed in Math and 25 passed in English. If 10 passed in both, how many failed in both?
উত্তর
5
১৯০৭৭
A reduction of 20% in the price of sugar enables a purchaser to obtain 3 kg more for Tk. 120. What is the original price per kg?
উত্তর
Tk. 10
১৯০৮০
If a right triangle has base 6 cm and height 8 cm, what is its hypotenuse?
উত্তর
10 cm