Logical Reasoning - Number Series - Discussion

Discussion Forum : Number Series - Type 1 (Q.No. 19)
Directions to Solve
In each series, look for the degree and direction of change between the numbers. In other words, do the numbers increase or decrease, and by how much

19.
Look at this series: 8, 6, 9, 23, 87 , ... What number should come next?
128
226
324
429
Answer: Option
Explanation:

8 x 1 - 2 = 6
6 x 2 - 3 = 9
9 x 3 - 4 = 23
23 x 4 - 5 = 87
87 x 5 - 6 = 429 ...

Discussion:
122 comments Page 3 of 13.

Sun said:   12 months ago
Thank you everyone for explaining the answer.
(2)

Yedla Bhasker said:   1 year ago
Thanks all for explaining.
(9)

Khushi said:   1 year ago
Nice explanation, Thanks.
(8)

Prachi said:   1 year ago
Very good and useful question. Thanks for posting.
(7)

Trezker said:   1 year ago
There is one thing here i want to mention where is 8.
if 8*1-2=6 so 8*0-1 =-1 but it doesn't match up.
and even i use 8*1-1 = 7 not 8.
(7)

Devesh kumar kashyap said:   2 years ago
Thank you all for your explanation.
(14)

Siva said:   2 years ago
Thanks, everyone, Good luck to all.
(5)

Tejeswani said:   2 years ago
Thanks everyone for giving explanation.
(9)

Nandini said:   2 years ago
@All.

Here is my explanation.

8 * 1 = 8 - 2 = 6.
6 * 2 = 12 - 3 = 9,
9 * 3 = 27 - 4 = 23,
23 * 4 = 92 - 5 = 87,
87 * 5 = 435 - 6 = 429.
(31)

Asha said:   2 years ago
Thank you everyone for explaining the answer.
(16)


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