Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 2 (Q.No. 1)
Directions to Solve
Look carefully for the pattern, and then choose which pair of numbers comes next.
1.
28 25 5 21 18 5 14
Answer: Option
Explanation:
This is an alternating subtraction series with the interpolation of a random number, 5, as every third number. In the subtraction series, 3 is subtracted, then 4, then 3, and so on.
Discussion:
126 comments Page 1 of 13.
Raghavendra said:
1 decade ago
Please give the details of solution of this question because I cannot understand the your given clue.
Star007 said:
1 decade ago
Interpolation of a random number - 5 ? Explain this please.
Rohit T George said:
1 decade ago
@star007
That is quite simple.
INTERPOLATION here means simply including the number without logic.
28 25 5 21 18 5 14
Here 5 is used as a median you can say remove the 5's
28 25 (diff 3)
21 18 (diff 3)
14 ? (diff 3)( ?=11)
Then the next number is 5 because of interpolation.
That is quite simple.
INTERPOLATION here means simply including the number without logic.
28 25 5 21 18 5 14
Here 5 is used as a median you can say remove the 5's
28 25 (diff 3)
21 18 (diff 3)
14 ? (diff 3)( ?=11)
Then the next number is 5 because of interpolation.
M.s.kumar said:
1 decade ago
Good easy question. Look at carefully.
Shreya said:
1 decade ago
Excellent logic.
Raji said:
1 decade ago
Nice solution given from rohit.
Sankari said:
1 decade ago
Nice solution Rohit
MOHAN RAVITEJA.BOLLAREDDY said:
1 decade ago
Please explain more because I can't understand this question.
Siva Prasad said:
1 decade ago
This is really nice because here 5 is reapeted for every number of 2 numbers so if we get the differene between 2 numbers which are between 5 and 5 we can get the answer easily.
Praveen Pendli said:
1 decade ago
Nice solution given from Rohit
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers