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Young's Modulus of Elasticity

If "+" means ...

Question

If "+" means " $\div$ "; " $\div$ " means "-"; "-" means $\times$ " and " $\times$ " means "+", then
$10 \div 2 - 15 + 3 \times 5 = ?$

A

10

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B

15

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C

25

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D

5

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E

0

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Solution

The correct option is C $5$
After substituting the symbols in the given expression the new expression will be
$10 - 2 \times 15 \div 3 + 5$
= $10 - 2 \times 5 + 5$
= $10 - 10 + 5 = 5$
Hence, option (D) is the correct answer.

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