December 15, 2021 Babad A

MATHS Higher GCSE , Ratio and proportion

Amy shares a bag of sweet with her friends.

She gives Beth 2/5 of the sweets.

She gives Carl 3/10 of the sweets.

She has 18 sweets left.

How many sweets does Amy give to Beth?


2/5+ 3/10= 7/10   

Amy is left with 1-7/10 =3/10 of the  total sweets;   18 sweets represents 3/10 of the total sweets.

Originally , Amy had 18 x 10/3= 60 sweets.

Amy give to Beth:

2/5 x 60= 24 sweets to Beth.


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