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If % means +, @ means –, ^ means ÷ , v means ×.. Then the value of is
$42 space logical and 7 logical or 8 @ 25 percent sign 63 logical and 9$

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–10

–20

answer is D.

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Detailed Solution

$42 \div 7 \times 8 - 25 + 63 \div 9$

$= 6 \times 8 - 25 + 7$

= 48 – 25 + 7

= 48 +7 – 25

= 55 – 25

= 30

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