There are three sections A, B and C in a scho | vedclass

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(B) Given,$A:B = 3:5$ and $B:C = 4:7$.To find the combined ratio $A:B:C$,we equate the value of $B$ in both ratios.The least common multiple of $5$ an

Vedclass · Accepted Answer

$36$

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(B) Given,$A:B = 3:5$ and $B:C = 4:7$.To find the combined ratio $A:B:C$,we equate the value of $B$ in both ratios.The least common multiple of $5$ and $4$ is $20$.Multiplying the first ratio by $4$ gives $A:B = 12:20$.Multiplying the second ratio by $5$ gives $B:C = 20:35$.Thus,the combined ratio is $A:B:C = 12:20:35$.The sum of the ratio parts is $12 + 20 + 35 = 67$.The total number of students is $201$.The number of students in section $A$ is $\frac{12}{67} 	imes 201 = 12 	imes 3 = 36$.

There are three sections $A, B$ and $C$ in a school of class $I$. The ratio of students in sections $A$ and $B$ is $3:5$ and that in $B$ and $C$ is $4:7$. If the total number of students in the class is $201$,then the number of students in section $A$ is:

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