Question

adam and his dad share the cost of a meal in the ratio of 2:3. adam's dad pays £52.20. What is the total cost of the meal?

Answer 1

Adam's dad paid £52.20.
This is considered three "parts" of the total cost.
Let's divide by 3 to find the size of one part.
£52.20 ÷ 3 = £17.40
Now, multiply by 5 (Adam's parts + his dad's) to get the total cost.
$\boxed{\£87}$

Answer 2

(I'll do it with a dollar sign cause I don't have pounds on my laptop).

- Adam's Dad pays 3/5 parts of the meal

- Adam's dad pays $52.20 that equal 3/5

- Adam pays 2/5 

-Divide A's dads payment of $52.20 by 3

- That means $17.40 is 1/5 

- $17.40 x 5 = $82 and that is the full meal

Done :)