If $50/\text"*" = \text"*"/{12{1/2}}$, then the value of * is : Options: A . &nbsp25 B . &nbsp$25/2$ C . &nbsp4 D . &nbsp$4/25$

If $50/\text"*" = \text"*"/{12{1/2}}$, then the value of * is :

Question

If $50/\text"*" = \text"*"/{12{1/2}}$, then the value of * is :

Options:

A . 25

B . $25/2$

C . 4

D . $4/25$

Answer: Option A
Answer: (a)Let the value of * be x.$50/x = x/{12{1/2}}$$50/x = {2x}/25$$2x^2$ = 50 × 25$x^2$ = 25 × 25 ⇒ x = 25

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