IF x+y=9 and x-y = 5 the value of 4xy is:
Tk. 51 is distributed between sumi and Meem in such a way that Sumi receives Tk. 3 less than twice the amount received by Meem. The amount received by Sumi is-
The compound interest on Tk 200 at 10% in 3 years is approximately -
The ratio of ages of a father and his son was 5:1. What is the age of the son after five years, if the ratio of their ages is 3:1 by this time ?
One half of pole is deep into the soil under water, one-third of it is above the soil under water and two meters of it is above the water level. The total length of the pole in meter is-
At a selling price of Tk.273 a book yields 30% profit. What selling price will yield the profit of 10% ?
What is the volume of a cube that has a total surface area of 54?
The product of two number is 900 and their sum exceeds their difference by 30.The greater of these two number is-
After paying 10% tax on all income over Tk. 3000. Rahima had a net income of Tk. 12000. Rahims income before tax was-
A retail buyer purchase 15 white dress shirts for Tk. 1000 and 5 striped dress shirts Tk. 400. At what average price the retailer should sell a dress shirt if he wants to make a proftit of Tk. 50 each shirt?
Alam spent 20% of his income on taxes and 20% of the remainder on rent. What percent of his income he has spent on rent?
Which of the following is the lowest positive integer divisible by 2,3,4,5,6,7,8 and 9?
20 men can finish a work in 30 days after how many days should 5 men leave the work so that the work may be finished in 35 days?
The pipe can independently fill a water tank in 10,12 and 15 hours. How many hours will take for all three pipes opened together to fill half of the tanks?
In a class of 30 students 18 play football, 14 play cricket and 5 do not play any game. How many students play both the game?
An amount of money becomes Tk. 1,860 at an interest rate of 8% in 3 years . How many years the money would take to become Tk. 2040 at the same interest rate?
If a : b= 4 : 7 and b : c= 5 : 6 ,then a : b : c is--
A number is multiplied by 4 and then the product is divided by 100. This same result can be obtained if the original number divided by-
There is a 2 meter wide road surrounding a pond which is 60 meters long and 40 wide. The area covered by the road is:
If 30% of A =0.25 of B=1/5th of C, the ratio of A,B and C is _____