৩৩৮৩
The velocity of a boat rowed downstrem is three times than that of the same boat rowed upstream. If the speed of the stream is 2.5 miles per hour, what is the speed of rowing in miles per hour?
উত্তর
5
৩৩৮৪
In n is an even integer, which of the following must be an odd integer?
উত্তর
(16n+24)8
৩৩৮৭
The ratio of seats for Mathematics , Physics and Biology in a school is 5: 7: 8. There is a proposal to increase these seats by 40% , 50% and 75% respectively. What will be the ratio of increased seats?
উত্তর
2 : 3: 4
৩৩৮৮
Out of 30 student o any class, 20 students like football and 15 students like cricket. The number of students who like both the games is 10. Find the number of students who do not like any of the sports.
উত্তর
5