Question

A group of tourists spend $168 to rent snorkels and find. A total of 10 snorkels and 12 pairs of fins are rented. Renting a snorkel costs three times as much as renting a pair of fins. How much does it cost to rent a snorkel?

Answer 1

Cost to a rent a snorkel
`=\$ 12` , Cost on 10 rent snorkel
`=\$ 120`

Explanation:

Given,

Tourist spend on rent snorkel and fin=
`\$ 168`

10 snorkel and 12 pairs of fin

Let the cost to rent a snorkel be =
`\$`x

and cost of a pair of fin is =
`\$`y

x=3y (given condition)

`10x+12y=168`

`10* 3y+12y=168`

`30y+12y=168`

`42y=168`

`y=168/42`

`y=4`

Cost of a pair of fin=
`y=\$ 4`

`x=3y`

`x=3* 4`

`x=12`

Cost of rent a snorkel
`=\$ 12`

Total cost of a rent snorkel

`=10* 12`

=
`\$ 168`