Aptitude - Odd Man Out and Series - Discussion
Discussion Forum : Odd Man Out and Series - Pick Wrong No. (Q.No. 14)
Directions to Solve
Find out the wrong number in the given sequence of numbers.
14.
56, 72, 90, 110, 132, 150
Answer: Option
Explanation:
The numbers are 7 x 8, 8 x 9, 9 x 10, 10 x 11, 11 x 12, 12 x 13.
So, 150 is wrong.
Discussion:
37 comments Page 4 of 4.
Payel said:
1 decade ago
Megha you are wrong. 56 is not divisible by 3.
Megha said:
1 decade ago
I think 110 is not divisible by 3. All others are divisible by 3. So 110 is also wrong
Prashanth said:
1 decade ago
7^2+7=56
8^2+8=72
9^2+9=90
10^2+10=110
11^2+11=132
12^2+12=156
So 150 is wrong.
8^2+8=72
9^2+9=90
10^2+10=110
11^2+11=132
12^2+12=156
So 150 is wrong.
Bharu said:
1 decade ago
56+90=146
(146-2)/2= 72
Similarly
(72+110-2)/2= 90.......
(110+150-2)/2=129 but not 132 so 150 is wrong.
(146-2)/2= 72
Similarly
(72+110-2)/2= 90.......
(110+150-2)/2=129 but not 132 so 150 is wrong.
Mehar said:
1 decade ago
72-56=16;
90-72=18;
110-90=20;
132-110=22;
150-132=18; So it is disturbs the sequence of flow.
90-72=18;
110-90=20;
132-110=22;
150-132=18; So it is disturbs the sequence of flow.
Udayakumar said:
1 decade ago
Differences b/w the ith term and (i+1)th term starts from 16 and goes on increasing by 2... The last no 150 doesn't satisfy this condition.
Prasanna said:
1 decade ago
Here the alternate way is available.... that is
56+16=72
72+18=90
90+20=110
110+22=132
132+24=156
so the 150 is wrong here :)
56+16=72
72+18=90
90+20=110
110+22=132
132+24=156
so the 150 is wrong here :)
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