If 1/2 of the air in a tank is removed with each stroke of a vacuum pump, what fraction of the original amount of air has been removed after four strokes ?

K produces 100 parts twice as fast as G does. G produces 100 parts in 40 minutes. If each produces parts at a...

If 18 is 15 percent of 30 percent of a certain number , what is the number ?

Last year the sales of Store X in December was 4 times the average of the monthly sales totals for January thr...

If TK. 1,000 is invested in a account paying 10% compounded monthly, how much would be the nearest ending bala...

According to a survey of business firms in a certain city, 750 firms offer their employees health insurance ,...

What is the width of a rectangular field, whose length is 70 feet more than its width and the perimeter is 500...