Question

The Jurassic Zoo charges $12 for each adult admission and $6 for each child. The total bill for the 205 people from a school trip was $1590. How many adults and how many children went to the zoo?

Answer 1

`60` adults and `145` children went to the zoo.

Explanation:

Let us assume number of adults are `a`,

hence number of children are `205-a`

As Jurassic Zoo charges `$12` for each adult admission and `$6` for each child,

the total bill is `12xxa+(205-a)xx6=12a+1230-6a=6a+1230`

but bill is `$1590`

Hence `6a+1230=1590`

or `6a=1590-1230=360`

or `a=360/6=60`

Hence `60` adults and `(205-60)=145` children went to the zoo.