Question

Joy is collecting rocks. She has 3 jars and 4 buckets. There are 2 rocks in each jar and 3 rocks in each bucket. How many rocks does Joy have?

Answer 1

18 rocks

Explanation:

Translate the words you've been given into nice maths phrases.

Jars: 3 jars, each with 2 rocks. So 3J, and J=2R

Buckets: 4 buckets, each with 3 rocks. So 4B, B=3R

`R = B + J`

`R= (4*3) + (3*2)`

`R= 12 +6`
`=18`