Look carefully for the pattern, and then choose which pair of numbers comes next.
1.
28 25 5 21 18 5 14
[A].
11 5
[B].
10 7
[C].
11 8
[D].
5 10
[E].
10 5
Answer: Option E
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.
Please give the details of solution of this question because I cannot understand the your given clue.
Star007 said:
(Tue, Oct 19, 2010 02:42:18 PM)
Interpolation of a random number - 5 ? Explain this please.
Rohit T George said:
(Sat, Nov 13, 2010 12:42:19 PM)
@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.
M.S.Kumar said:
(Sat, Dec 11, 2010 09:07:57 AM)
Good easy question. Look at carefully.
Shreya said:
(Sun, Jan 2, 2011 05:22:07 AM)
Excellent logic.
Raji said:
(Thu, Feb 3, 2011 01:33:45 AM)
Nice solution given from rohit.
Sankari said:
(Fri, Feb 11, 2011 04:05:08 AM)
Nice solution Rohit
Mohan Raviteja.Bollareddy said:
(Wed, Feb 16, 2011 03:02:21 AM)
Please explain more because I can't understand this question.
Siva Prasad said:
(Sat, Mar 5, 2011 02:36:09 AM)
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.
Excellent solution given by rohit. Excellent logic question.
Sumit said:
(Thu, Jul 7, 2011 12:49:17 AM)
Nice and easy solution thanks rohit.
Astha said:
(Tue, Jul 12, 2011 02:59:30 AM)
Excellent logic Rohit.
Really appreciate,
Thanks.
Anitha said:
(Mon, Aug 8, 2011 10:56:36 PM)
Nice explanation rohit..
Amit said:
(Thu, Sep 8, 2011 02:20:34 PM)
Simple remove 5 and calculate number.
You find diffrennce of 3.
Preethi said:
(Sun, Sep 11, 2011 06:11:47 PM)
Good rohit.
Shankari said:
(Mon, Sep 12, 2011 05:46:00 PM)
I can't understand this problem.
Ganesh said:
(Wed, Sep 21, 2011 05:56:36 PM)
Super Rohit.
Sanchit said:
(Mon, Sep 26, 2011 05:04:17 PM)
Thanks rohit.
Mahesh said:
(Tue, Oct 11, 2011 11:31:14 PM)
28-3=25 the answer is 3 after the number is 5 next substact the 21 and 18 the answer is 3 the randomly 5 is comes again we substaract 14-3=11 randomly the 5 comes the answer is A.
Akhila said:
(Wed, Oct 12, 2011 06:49:34 PM)
Nice solution rohit.
Richa said:
(Sat, Nov 26, 2011 12:54:13 PM)
Thanks rohit to give us explanation.
Balvir said:
(Wed, Jan 4, 2012 01:06:01 PM)
28 (-3) 25 & 5
21 (-3) 18 & 5
14 (-3) 11 & 5
Ans (A) 11 5
Archana said:
(Fri, Jan 6, 2012 03:07:09 PM)
Nice logic...
28 25 5 21 18 5 14
28-25=3 then
25-21=4 then
21-18=3 then
18-14=4 then
14-11=3 then answer is 11
One by one step we can minus by 3 and 4
Answer: 28 25 5 21 18 5 14 11 5
Omkar said:
(Thu, Feb 2, 2012 05:57:40 PM)
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.
28 (-3) 25 & 5
21 (-3) 18 & 5
14 (-3) 11 & 5
Ans (A) 11 5
Kailash Malav said:
(Tue, Feb 28, 2012 10:56:05 AM)
Simply , look series first two number difference is 3 and second digit less than first digit than third digit is 5 and so on........
Rashmi Kumari said:
(Thu, Mar 22, 2012 10:12:45 AM)
Difference of 1st and 4th number in series as 7,7,0 so put the value like that. So the next number in series are 11,5
