Answer:
A-> 30
B->36
C->81
Explanation:
A:B:C
5x4 : 6x4
4x6 : 9x6
new ratio
A : B : C
20 : 24
24 : 54
54-20=34
34u->51
1u->1.50
A-> 20u ->1.50 x 20 = 30
B->24u -> 1.50 x 24 = 36
C-> 54u ->1.50 x 54 = 81
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