৫৯৫৩
Let M be the median and m the mode of the following set of numbers : 10, 70, 20, 40, 70, 90. What is the average (arithmetic) mean of M and m?
উত্তর
62.5
৫৯৫৮
The difference between simple and compound interest at 5% annually on a sum of TK. 10000 at the end of 2 years -
উত্তর
25
৫৯৫৯
If a ladder touches the roof of a wall and makes an angle of 45° with the 15 metre long wall, then the length of the ladder is-
উত্তর
15√2m
৫৯৬০
A product is bought and sold at the profit of 15% the ratio of selling and buying cost is -
উত্তর
23:20