A bag of cookies was distributed to 3 girls, Amber, Christine and Doris. Amber received 45 cookies and the remaining cookies were distributed to Christine and Doris in the ratio 2 : 5. If Christine received 1/5 of the total cookies, how many cookies were there in the bag at first.
The remaining cookies were distributed to Christine and Doris in the ratio 2 : 5. Christine received 1/5 of the total cookies.
2 -- 1/5
Express the number of cookies Doris and Amber had in fractions.
5 -- 5/2 x 1/5 = 5/10
5/2 x 1/5 = 5/10
10/10 – 1/5 x 2/2 – 5/10 = 3/10
Amber received 45 cookies.
3 u --> 45
10 u --> 10/3 x 45 = 150 cookies
There were 150 cookies in the bag at first.
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