A worker is paid d Dollar an hour for the first 8 hours. Four every hour after the first 8 hours, she is paid c dollars an hour. If she works 12 hours in one day, what is the average hourly wage for that day?

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

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?