Aptitude - Odd Man Out and Series - Discussion

@All.

I solve it as;
72-56=16,
90-72=18,
110-90=20,
132-110=22,
150-132=18( here the sequence break )so;

150 is an odd man term.

8 * 8 - 8 = 56
9 * 9 - 9 = 72
10 * 10 - 10 = 90
11 * 11 - 11 = 110
12 * 12 - 12 = 132.

So the answer should be 13 * 13 - 13 = 156.
150 is wrong

56 72 90 110 132 150

The logic is +16, +18,+20,+22,+24.
56 + 16 = 72,
72 + 18 = 90,
90 + 20 = 110,
110 + 22 = 132,
132 + 24 = 156.
So "150" is wrong.

72-56 = 16
90-72 = 18
110-90 = 20 132-110 = 22.

So, the next term is 132 + 24 = 156.
Therefore option [D] is the answer.

Agree, thanks @Sultan Ali Noorani.

7 2 -56 = 16
90 - 72 = 18
110 - 90 = 20
132 - 110 = 22
150 - 132 = 18.

So, 150 is wrong.

@ALL.

5 + 2 = 7
6 - 4 = 2
72

7 + 2 = 9
2 - 2 = 0
90

9 + 2 = 11
0 - 0 = 0
110

11 + 2 = 13
0 - 2 = - 2
132

13 + 2 = 15
- 2 - 4 = - 6
156

NOTE : JUST IGNORE THE MINUS ( - ) SYMBOL.

56 is not divisible by 6 & 3.

150 disturbs the series of adding +16, +18, +20, +22, +24.

The right no is 154.

So 150 is the odd number.

Given 56, 72, 90, 110, 132, 150.

Now lets check their squares 56 = 7 square (49) + 7 = 56.

Likewise in case of 72 = 8 square (64) + 8 = 72.

But in case of 150 = 12square (144) + 12 = 156.

So 150 is an odd number to be outed friends.

All the numbers except 110 are divisible by 3. And hence in my opinion 110 is wrong option.