幫手做Maths....(f.1-f.2)

1.One munber is 18 greater than another number. If the smaller munber is subtrscted from three times the greater number, the result is 78. Find the sum of the two numbers.

2.The sum of two numbers is 56 and the difference is 22. Find the larger number.

3.Whae a number is increasd by 32% and then multiplied by 80%, the result is 1.9008. Find the number.

4.Mr Chan had a sum of money. He first used 40% of it and then used 30% of the rest. He then had $210 left. How much did have originally?

THX~~