In a row of 35 children,M is 15^{th} from the | vedclass

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(D) Total number of children = $35$.$M$ is $15^{th}$ from the right end.There are $10$ children between $M$ and $R$.Case $1$: If $R$ is to the left of

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Data inadequate

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(D) Total number of children = $35$.$M$ is $15^{th}$ from the right end.There are $10$ children between $M$ and $R$.Case $1$: If $R$ is to the left of $M$,then $R$'s position from the right is $15 + 10 + 1 = 26^{th}$.Position from the left = $(	ext{Total} - 	ext{Position from right}) + 1 = (35 - 26) + 1 = 10^{th}$.Case $2$: If $R$ is to the right of $M$,then $R$'s position from the right is $15 - 10 - 1 = 4^{th}$.Position from the left = $(35 - 4) + 1 = 32^{nd}$.Since there are two possible positions for $R$ ($10^{th}$ or $32^{nd}$),the data is inadequate to determine a unique position.

In a row of $35$ children,$M$ is $15^{th}$ from the right end and there are $10$ children between $M$ and $R.$ What is $R$'s position from the left end of the row?

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