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What should come in place of the question mark (?) in the following number series?
1, 10, 90, 720, 5040, 30240, ?
1, 10, 90, 720, 5040, 30240, ?
- A161200
- B151200
- C171200
- D141200
Answer not set
Discussion 1
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CCommunity
The pattern of the given series is,
⇒ 10 = 1 × 10
⇒ 90 = 10 × 9
⇒ 720 = 90 × 8
⇒ 5040 = 720 × 7
⇒ 30240 = 5040 × 6
∴ ? = 30240 × 5 = 151200
⇒ 10 = 1 × 10
⇒ 90 = 10 × 9
⇒ 720 = 90 × 8
⇒ 5040 = 720 × 7
⇒ 30240 = 5040 × 6
∴ ? = 30240 × 5 = 151200