১১৯১১
The marked price of an article is Tk. 500. It is sold on two successive discounts of 20% and 10%. The selling price of that article is -
উত্তর
Tk. 360
১১৯১৩
A vessel is filled with liquid, 3 parts of which are water and 5 parts syrup. How much of mixture must be drawn off and replaced with water so that the mixture may be half water and half syrup?
উত্তর
1/5
১১৯১৪
One-fourth of the boys and three-eight of the girls in a school participated in the annual ports. What proportional part of the total student population of the school participated in the annual sports?
উত্তর
4/12
১১৯১৫
If the rate of simple interest is 12% per annum the amount that would fetch interest of Tk. 6,000 per annum is?
উত্তর
Tk. 50,000
১১৯১৬
The compound interest on a certain sum of money for 2 years at 10% per annum is Tk. 420. The simple interest on the same sum at the same rate and for the same time will be?
উত্তর
Tk. 400
১১৯১৭
Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. what is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
উত্তর
9/20
১১৯১৮
A bag contains 2 red Roses, 4 yellow Roses and 6 pink Roses. Two roses are drawn at random. What is the probability that they are not of same color?
উত্তর
2/3
১১৯১৯
The sum of the present ages of a father and his son is 60 years. Five years ago, father's age was four times the age of the son. So now the son's age will be
উত্তর
15 years
১১৯২০
A hall is 15m long and 12m broad. If the sum of the areas of the floor and the ceiling is equal to of the areas of four walls, the volume of the hall is:
উত্তর
1,200 m3