Find the common factor of $10 P Q, 20 Q R and 30 R P .$

5

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5 Q

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10

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5 P

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Solution

The correct option is C $10$
$10 P Q = 2 \times 5 \times P \times Q$
$20 Q R = 2 \times 2 \times 5 \times Q \times R$
$30 R P = 2 \times 3 \times 5 \times R \times P$
So, the common factor $= 2 \times 5 = 10$
Hence, the common factor is 10.

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