If 3A=4B=9C then A:B:C=?
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Let
3A = 4B = 9C = K
So 3A = K
=> A = K/3
4B = K
=> B = K/4
9C = K
=> C = K/9
So, A : B : C
= K/3 : K/4 : K/9
On simplifying, K will be cancelled
=> ratio = 1/3 : 1/4 : 1/9
taking LCM,
12/36 : 9/36 : 4/36
=> Simplifying, 36 will be cancelled
=> ratio = 12 : 9 : 4
A : B : C = 12 : 9 : 4
Hope you understand
3A = 4B = 9C = K
So 3A = K
=> A = K/3
4B = K
=> B = K/4
9C = K
=> C = K/9
So, A : B : C
= K/3 : K/4 : K/9
On simplifying, K will be cancelled
=> ratio = 1/3 : 1/4 : 1/9
taking LCM,
12/36 : 9/36 : 4/36
=> Simplifying, 36 will be cancelled
=> ratio = 12 : 9 : 4
A : B : C = 12 : 9 : 4
Hope you understand
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