Problema Solution

The number of members in a country club increased by 25%in August as compared to July. However, the number of members in September dropped by 10% as compared to August. If the difference in the number of members between July and August was 48, how many members were there in September?

Answer provided by our tutors

let the members in jusy = x

in august = 1.25*x = 1.25x

in september = 0.9*1.25*x= 1.125x

given,

1.25x - x = 48

0.25x = 48

x = 192

hence members in september = 1.125*192 = 216