Joelle has 4 times as many cookies as Abi. The total number of Joelle's and Abi's cookies is 7 times of Emily's. Joelle and Abi have 60 cookies more than Emily's. How many more cookies does Joelle have than Abi?
| Joelle |
Abi |
Emily |
| 4x7 |
1x7 |
|
| 7x5 |
1x5 |
| 28 u |
7 u |
5 u |
The total number of cookies that Joelle and Abi have is repeated. Make the total number of cookies that Joelle and Abi have the same. LCM of 5 and 7 is 35.
Total number of cookies that Joelle and Abi have
= 28 u + 7 u
= 35 u
Number of more cookies that Joelle and Abi have than Emily
= 35 u - 5 u
= 30 u
30 u = 60
1 u = 60 ÷ 30 = 2
Number of more cookies that Joelle has than Abi
= 28 u - 7 u
= 21 u
= 21 x 2
= 42
Answer(s): 42
