Question

Yoku Is putting on sunscreen. He uses 2 ml to cover 50 cm² of his skin. He wants to know how many milliliters of sunscreen he needs to cover 325 cm² of the skin.

Answer 1

Find out the how many milliliters of sunscreen he needs to cover 325 cm² of the skin.

To prove

As given

Yoku Is putting on sunscreen.

He uses 2 ml of suncream to cover 50 cm² of his skin.

`2ml = 50 cm^(2)`

Now for 1 ml of suncream

`1ml = (50)/(2) cm^(2)`

1ml = 25 cm²

Thus for Yoku Is putting 1ml of sunscreen to cover 25 cm² of his skin.

Let us assume that the milliliters of sunscreen he needs to cover 325 cm² of the skin be x .

Now Find out the how many milliliters of sunscreen he needs to cover 325 cm² of the skin.

Than the equation becomes

25 × x =325

`x = (325)/(25)`

x = 13 milliliters .

Therefore 13 milliliters of sunscreen he needs to cover 325 cm² of the skin.