# Aptitude - Odd Man Out and Series - Discussion

Discussion Forum : Odd Man Out and Series - Find Wrong No. (Q.No. 2)

*Directions to Solve*

Find out the wrong number in the series.

2.

1, 1, 2, 6, 24, 96, 720

Answer: Option

Explanation:

Go on multiplying with 1, 2, 3, 4, 5, 6 to get next number.

So, 96 is wrong.

Discussion:

13 comments Page 1 of 2.
Santhosh said:
1 decade ago

I could not understand this problem, can you explain clearly please?

Cemi said:
1 decade ago

I also could not understand this.

Menaga said:
1 decade ago

Go on multiflying with 1,2,3,4,5,6....

1*1=1

1*2=2

2*3=6

6*4=24

24*5=120

120*6=720

The correct answer is 120. So 96 is the wrong number in the given series.

1*1=1

1*2=2

2*3=6

6*4=24

24*5=120

120*6=720

The correct answer is 120. So 96 is the wrong number in the given series.

(1)

Pavan said:
1 decade ago

Series can be written as 1, 1!, 2!, 3!, 4!, 5!, 6! = 1, 1, 2, 6, 24, 120, 720.

So odd number is 96 in given series.

So odd number is 96 in given series.

(1)

Sweta said:
1 decade ago

1*1=1

1*2=2

2*3=6

6*4=24

24*5=120

120*6=720

So, 96 is not correct.

1*2=2

2*3=6

6*4=24

24*5=120

120*6=720

So, 96 is not correct.

(2)

Athira said:
9 years ago

Thanks for your clarification.

Karthik said:
8 years ago

Factorials: i.e o!, 1!, 2!, 3!, ....

Mounika said:
8 years ago

Thanks for your wonderful explanation @Menaga.

Sakshi Deo said:
6 years ago

I didn't understand the significance of 1 two times in the series!

Any justification?

Any justification?

Galactic said:
6 years ago

Correct series is 0! 1! 2! 3! 4! 5! 6!.

5! is 120 not 96.

5! is 120 not 96.

(1)

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