The total of 10 number is 462; the average of the first 4 numbers is 52; the average of the last 5 numbers is 38. What is the fifth number?

There are 50 students enrolled is business finance. Of the enrolled students, 90% took the final exam. Two thi...

A book had a catalogue price of Tk. 400. It was sold at a discount of 15% . If the book had a cost of Tk. 200,...

At a selling price of Taka 275 a book yields 25% profit. What selling price will yield the profit of 10%?

Of the 65 cars on a car lot, 45 have air conditioning, 30 have power windows, and 12 have both air conditionin...

A stock decreases in value by 20%. By what percentage must the stock price increase to reach its former value?

An author received Taka 0.80 in royalties for each of the first 100,000 copies of his book sold, and Taka 0.60...