৫৭১৩
Ralph likes 25 but not 24; he likes 400 but not 300; he likes 144 but not 145. Which does he like:
উত্তর
1600
৫৭১৫
Father is aged three times more than his son Ronit. After 8 years, he would be two and a half times of Ronit's age. After further 8 years, how many times would he be of Ronit's age?
উত্তর
2 times
৫৭১৬
The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is:
উত্তর
40 years
৫৭১৭
How many 3-digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated?
উত্তর
20
৫৭১৮
If one-third of one-fourth of a number is 15, then three-tenth of that number is-
উত্তর
54
৫৭১৯
How many seconds will a 500 metre long train take to cross a man walking with a speed fo 3 km/ hr in the direction of the moving train if the speed of the train is 63 km/hr?
উত্তর
30