Question

The girls group rented 2 canoes and 3 inner tubes for a total cost of $80. The boys group rented 1 canoe and 7 inner tubes for a total cost of $95. What is the cost to rent 1 canoe?.

Answer 1

$25

Explanation:

Let the cost of a canoe be
`c` and the cost of a tube be
`t`.

`2c+3t=80 \\ \\ c+7t=95 \implies 2c+14t=190 \\ \\ \therefore (2c+14t)-(2c+3t)=190-80 \implies t=10 \\ \\ \therefore 2c+3(10)=80 \implies c=25`