How many positive integers less than ten thousand are multiples of both eight and eighteen?

By selling 20 oranges for one taka-a man losses 4%. How many oranges for one taka should he sell to gain 20%?

If a=4, b=5, c=3, what is the value of 4ab-6ac+2bc ?

5% loss is incurred when Rahim sells a watch for Tk. 1140. At what price should the watch be sold to earn 5% p...

A $140 book is marked down by 25% and then by another 10%. What is its final sale cost?

In a room of 36 people, 20 players play chess while 28 players play poker. How many players play both?

The average of x, y, z is 6 and x-y = 4, xy = 21, what is the value of z?