Verbal Reasoning - Series Completion - Discussion
Discussion Forum : Series Completion - Section 1 (Q.No. 28)
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
28.
563, 647, 479, 815, ?
Answer: Option
Explanation:
The pattern is + 84, - 168, + 336,.....i.e. + 84, - (84 x 2), + (84 x 22), .....
So, missing term = 815 - (84 x 23) = 815 - 672 = 143.
Discussion:
5 comments Page 1 of 1.
CdtAshish said:
9 years ago
@Selvam check your numbers.
563 - 647 = 84 = 84 * 1.
647 - 479 = 168 = 84 * 2.
815 - 479 = 336 = 84 * 4.
815 - ? = ? = 84 * 8.
84 * 8 = 672.
So, 815 - 672 = 143 (opt D).
563 - 647 = 84 = 84 * 1.
647 - 479 = 168 = 84 * 2.
815 - 479 = 336 = 84 * 4.
815 - ? = ? = 84 * 8.
84 * 8 = 672.
So, 815 - 672 = 143 (opt D).
(1)
Uday said:
9 years ago
I am not getting. Can somebody else find out the solution?
(2)
Shubham said:
1 decade ago
Why not 386?
Addition gives 14, 17, 20 and may repeat.
Addition gives 14, 17, 20 and may repeat.
(1)
Selvam said:
1 decade ago
563-647=84 =84*1
647-479=168=84*2
815-479=336=84*3
815- ? = ? =84*4
84*4=672
so 815-672=143(opt D)
647-479=168=84*2
815-479=336=84*3
815- ? = ? =84*4
84*4=672
so 815-672=143(opt D)
(2)
Pallu said:
1 decade ago
I can't understand.
(1)
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