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If 5A = 13B = 7C; find the value of A : B : C.
- A91 : 35 : 65
- B65 : 35 : 91
- C35 : 91 : 65
- D7 : 13 : 5
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CCommunity
According to the given information,
LCM of 5, 13 and 7 is 455.
On dividing the given equation by 455, we get,
5A/455 = 13B/455 = 7C/455
⇒ A/91 = B/35 = C/65
⇒ A/B = 91/35
⇒ B/C = 35/65
∴ A : B : C = 91 : 35 : 65
Hence (a) is correct
LCM of 5, 13 and 7 is 455.
On dividing the given equation by 455, we get,
5A/455 = 13B/455 = 7C/455
⇒ A/91 = B/35 = C/65
⇒ A/B = 91/35
⇒ B/C = 35/65
∴ A : B : C = 91 : 35 : 65
Hence (a) is correct