Question 50

Study the given pattern carefully and select the number that can replace the question mark (?) in it.

Solution

The logic for the given pattern is

$$\left(9+1\right)\times 13=130$$

$$\left(14+1\right)\times 9=135$$

Let the required number be $$a$$

Similarly, $$\left(7+1\right)\times a=168$$

$$\Rightarrow$$ $$8a=168$$

$$\Rightarrow$$ $$a=21$$

$$\therefore\ $$Required number = 21

Hence, the correct answer is Option B

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