If 5x + 2y = 10 and x + 8y = 46, then 3x + 5y equals :
An overnight express firm charges Tk. 2 per kg for the first 10 kg of packet weight and Tk. 1 for each kg of or fraction of kg over 10 kg of packet weight. How much will it charge to ship a package which weighs 17.5 kg?
Of the following fractions, which one is less than 2/3?
At a selling price of Tk. 275 a book yield 25% profit. What selling price will yield the profit of 10%?
If the side of a square decreases by 30%, then the area of the square decreases by :
How many of the integers between 150 and 160 are prime numbers?
City B is 4 miles east of City A. City C is 3 miles north of City B. City D is 8 miles east of City C and City E is 6 miles north of City D. What is the distance from City A to City E?
Mr. Rahim purchased one lot of shares (50 shares per lot) of company X for Tk. 5000 and sold 3/5th of it after its value doubled. He sold the remaining shares at a price 3 times higher than the original purchase price. What was his total profit?
(-5)(4)(2) (-1/2) (3/4) = ?
There are 8 books on a shelf, of which 2 are paperbacks and 6 are hardbacks. how many possible selections of 4 books form this shelf include at least 1 paperback book?
When tossed, a certain coin has equal probability of landing on either side. If the coin is tossed 3 times, what is the probability that it will land on the same side each time?
Of the fruits that arrive at the cannery, 20 percent by weight is rejected before processing. Of the fruit that is processed, 15 percent by weight is rejected before canning. Of the fruit that arrives at the cannery. what percent by weight is canned?
If x percent of 40 is y, Then 10x equals :
If x/y=5/z, then 25y2 equals
The sum of five consecutive integers is 105. The sum of the first two is :