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Algebra of Limits

If √ means ...

Question

If $\sqrt{}$ means $^{2}$ , $\times$ means $+$ , $-$ means $\times$ and $+$ means $\div$ then $\sqrt{20} + 25 \times 5 - 3 = ?$

A

28

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B

31

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C

32

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D

38

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Solution

The correct option is B 31
Replacing the symbols as given in the question
$20^{2} \div 25 + 5 \times 3$
$= 400 \div 25 + 5 \times 3$
$= 16 + 5$
$= 31$

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