Instructions

What should come in place of the question mark (?) in the following number series ?

Question 193

2 12 60 240 720 ?

Solution

2 $$\times$$ 6 = 12

12 $$\times$$ 5 = 60

60 $$\times$$ 4= 240

240 $$\times$$ 3 =720

720 $$\times$$ 2= 1440 (B)

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