Discussion of Question with ID = 042 under Problems-on-Numbers

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Question

If ${13/20}$ of a number is 23, what is $1{10/13}$ of that number?

A

$62{102/169}$.

B

$63{55/56}$.

C

$60{151/171}$.

D

$64{143/171}$.

Soln.
Ans: a

Let the number be N. Then it is given that ${13/20}$ x N = 23. ⇒ N = 23 X ${20/13}$. ⇒ ${23/13}$ x N = ${23/13}$ x 23 X ${20/13}$ = ${10580/169}$.

${23/13}$ is same as $1{10/13}$. ${10580/169}$ is same as $62{102/169}$.


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