১৩৭৬১
In a tourist group of 100 people, 55 speak French, 40 speak Spanish, and 20 speak none of the languages. How many of them speak just one language?
উত্তর
65
১৩৭৬২
69% of the students of a certain class took Mathematics and 47% took Biology. If each student took Biology or Mathematics and 44 took both, what is the total number of students in the class?
উত্তর
275
১৩৭৬৩
The distance between cities A and B is 120 miles. A car travels from A to B at 60 miles per hour and returns from B to A along the same route at 40 miles per hour. What is the average speed for the round trip?
উত্তর
48
১৩৭৬৪
The average of a natural number and its cube is 13 times the number. The number is-
উত্তর
5
১৩৭৬৯
If the height of a tringle is increased by 60% and its base is decreased by 30%, what will be the effect on its area?
উত্তর
12% Increase