Book Maths Puzzle Ratio and Proportion

43,000 is 80% of what number? How do you figure this problem type?

Read Solution (Total 1)

Book Other Question

A tank is supplied by two pipes A and B and emptied by a third pipe C. If the tank is empty and all pipes are opened the tank can be filled in 20 hours. If the tank is full and A What percent is 30 out of 40?