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Question

What number should be divided by `sqrt(0.25)`  to give  the result as 25 ?


Options:
A .  12.5
B .  25
C .  50
D .  125
Answer: Option A

Let the required number be `x`. Then , `x/sqrt(0.25)`  =  25   `hArr`   `x/0.5` = 25   `hArr`  `x` = 25 x 0.5 = 12.5.




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