Question

There were 20 boys and 26 girls in a chess club last year. This year the number of boys increased by 30% but the number of girls decreased by 15%. Was there an increase or

decrease in overall membership?

Answer 1

Explanation:

Boys

`20 + (20 / 100)30 = \\ = 20 + 0.2 * 30 = \\ = 20 + 6 = \\26`

Girls

`26 - (26 / 100)15 = \\ = 26 - 0.26 * 15 = \\ = 26 - 3.9 = \\ = 22`

Total last year 46

Total this year 48

Increase