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?

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...

Mr. Rahim purchased one lot of shares (50 shares per lot) of company X for Tk. 5000 and sold 3/5th of it after...

(-5)(4)(2) (-1/2) (3/4) = ?