Question 48

Find the missing number in the following series.

1, 6, 30, (…), 360, 720

Solution

1 , 6 , 30 , 120 , 360 , 720 ,......

$$ 1 \times 6=6 $$

$$ 6 \times 5=30 $$

$$ 30 \times 4=120 $$

$$ 120\times 3=360 $$

$$ 360 \times 2=720 $$

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