A container holds 4 quarts of chemical and 4 quarts of water. How many quarts of water must be added to the container to create a mixture that is 3 parts chemical to 5 parts water by volume?
Sue planted 4 times as many apple seeds as she planted orange seeds. 15% of the apple seeds grew into trees, and 10% of the orange seeds grew into trees. If a total of 420 apple trees and orange trees grew from the seeds, how many orange seeds did Sue plant?
After decreasing 24% in the price of an article the discounted price becomes $912. Find the actual price of the article?
A borrower pays 18% interest per year on the first Tk. 600 he borrows and 17% per year on the part of the loan in excess of Tk. 6000. How much interests will the borrower pay on a loan of Tk. 6000 for one year?
a, b and c are positive integers. If b equals the square root of a, and if c equals the sum of a and b, which of the following could be the value of e?
A lent Tk. 4000 to two persons for one year. Some amount was lent at 5% and the rest at 4%. He got Tk. 180 as interest. How much money was lent at 5%?
If y exceeds x by 20%, then x is less than y by:
In an election between two candidates, one got 55% of the total valid votes. 20% of the votes are invalid. If the total votes are 7500, what is the total number of valid votes the other got?
A, B and C enter into partnership with investments in the ratio of 5 : 7 : 8. If, at the end of the year A's share of profit is Tk. 42360, how much is the total profit?
A Company makes a profit 6% on its first Tk. 10,000 of sales day and 5% an all sales in excess of Tk. 10,000 for that day. How much profit will the company make in a day when sales are Tk. 16,000?
When a certain number is divided by 7, the remainder is 0. But the remainder is not 0 when the number is divided by 14, then the remainder must be ---
If 18 identical machines required 40 days to complete a job, how many fewer days would have been required to do the job if 6 additional machines of the same type had been used from the beginning?
There are 20 members in a football squad. In electing a captain and a vice-captain, how many different outcomes of the election are possible?
If 4 is subtracted from one-fourth of a number, the result in 20. Which of the following is the number ---
The area of a rectangle R with width 4 feet is equal to the area of a square S which has a perimeter of 24 feet. The perimeter of the rectangle R, in feet is :
Salma's average in four tests is 80%. What marks does she need in her fifth test to raise her average to 84%?
How many of the positive integers less than 25 are 2 less than an integer multiple of 4?
A machine fills a bag with 7 ounces of potato chips in 3.5 seconds. At this rate, how many seconds will take the machine to fill a bag with 15 ounces of potato chips?
What is the largest number of apples not exceeding 440 that can be distributed among three persons in the proportions of 5 : 6 : 7?
A manufacturer of TV wants to make a profit of Tk. 300,000 on sale of 200 TV sets. It costs Tk. 10,000 each to make the first 100 TV sets and Tk. 7,500 each to make TV sets after the first 100 sets. What should be the selling price of each TV sets in Taka?