Question

10500 people visited an art gallery in 2002.This was an increase of 25% on 2001.How many visitors were there in 2001?​

Answer 1

There were (10500/1.25) = 8400 visitors in 2001.


Step-by-step explanation:
An increase of 25% means multiplying by 1.25. So, if the visitors from 2001 are multiplied by 1.25, then the result is 10500. Thus, the amount from 2001 was 10500/1.25=8400

Answer 2

The amount in 2001 is 8400

Step-by-step explanation:

Let x be the amount in 2001

There is an increase of 25% to get to the amount in 2002

x+ .25x = 1.25 x

1.25x = 10500

Divide each side by 1.25

1.25x / 1.25 = 10500/1.25

x =8400

The amount in 2001 is 8400