Question 1204288
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Let c = number of chocolate cakes
Then c+24 = number of vanilla cakes
The number of strawberry cakes is given as 18<br>
The chocolate cakes were 1/5 of the total, so the vanilla and strawberry cakes were 4/5 of the total.  That means the total number of vanilla and strawberry cakes was 4 times the number of chocolate cakes:<br>
(c+24)+18 = 4(c)
c+42 = 4c
42 = 3c
c = 14<br>
ANSWERS:
(a) 4/5
(b) c+24 = 38<br>