১৩৬০১
The average length of the sides of ∆ABC is 12. What is the perimeter at ∆ABC?
উত্তর
36
১৩৬০৪
What percentage of numbers from 1 to 70 have squares that end in the digit 1?
উত্তর
20
১৩৬০৫
Average of ten positive numbers is x. If each number increases by 10%, then x-
উত্তর
is increased by 10%
১৩৬০৬
There are 23 poles with a constant distance between each pole. A car takes 24 seconds to reach the 12th pole. How much more time will it take to reach the last pole?
উত্তর
48 seconds
১৩৬০৮
If the nth terms of an arithmetic progression is 4n + 1, then the common difference is-
উত্তর
6
১৩৬০৯
A boat goes 13km upstream in 39 minutes. The speed of stream is 3km/hr. The speed of boat in still water is-
উত্তর
23 km/hr
১৩৬১০
In a 500m race, the ratio of speeds of two contestants A and B is 3 : 4. A has a start of 140m. Then A wins by-
উত্তর
20m