If one factor of $84$ is $7$ , find its other factor pair to open the lock of the treasure box.

12

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Solution

The correct option is A 12
Factor pairs of a number are those numbers which upon multiplying give the desired number.

Open the lock of the treasure box by putting in the factor pair of $84$ .

One factor is given as $7$ .

To find the other factor, think of a number which on multiplication with $7$ , gives $84$ as a product.

Represent the factor pairs of 84.

So, $84$ as $84 = 7 \times 12$ .

So, $12$ along with $7$ will be the factor pair of $84$ .

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