১৫১১১
When the positive integer n is divided by 5, the remainder is 2. Which of the following must be true?
উত্তর
None
১৫১১৩
Apu took 3/5 of the marbles kept in a box. His younger took another 3/5 of remaining marbles. Then his sister took another 3/5 of the remaining marbles. What fractions of the marbles are left in the box?
উত্তর
8/125
১৫১১৪
The average daily wages of female workers in a factory is Tk. 30 and that of male workers is Tk. 42. If the average wages of all the workers is Tk. 37, what is the ratio of male to female workers?
উত্তর
7 : 5