If A: B = 7: 5 and B: C = 9: 11, then A: B: C | vedclass

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(B) Given ratios are $A: B = 7: 5$ and $B: C = 9: 11.$To find $A: B: C,$ we need to make the value of $B$ common in both ratios.The value of $B$ in th

Vedclass · Accepted Answer

$63: 45: 55$

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(B) Given ratios are $A: B = 7: 5$ and $B: C = 9: 11.$To find $A: B: C,$ we need to make the value of $B$ common in both ratios.The value of $B$ in the first ratio is $5$ and in the second ratio is $9$.The least common multiple of $5$ and $9$ is $45$.Multiply the first ratio by $9$: $A: B = (7 	imes 9) : (5 	imes 9) = 63: 45.$Multiply the second ratio by $5$: $B: C = (9 	imes 5) : (11 	imes 5) = 45: 55.$Now,combining both,we get $A: B: C = 63: 45: 55.$

If $A: B = 7: 5$ and $B: C = 9: 11,$ then $A: B: C$ is equal to

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