Answer:
Brian gets 28 sweets
Explanation:
Given A= Alice and B= Brian total amount of is 63
A : B = 5 : 4
4 + 5 = 9 portions in total which add up to 63
one such portion must contain 63 / 9 sweets.
Since 63 / 9 = 7 we can now give the answer because of the ratios are known.
Alice has 5 * 7 = 35
Brian has 4 * 7 = 28
The answer is Brian gets 28 sweets.