Question

Ayso has 18 8th grade boys teams this year but this is a 28% decrease from the prior year. How many 8th grade teams were there last year?

Answer 1

23pupils

Explanation:

Given parameters:

Number of 18th grade boys this year = 18

Percentage decrease = 28%

Unknown:

How many 8th grade teams were there last year = ?

Solution:

Since this is a percentage decrease, ;

Number of pupils this year = Number of pupils last year - (28% x 18 )

18 + (28% x 18 ) = Number of pupils last year

Number of pupils last year = 23pupils