Aptitude - Odd Man Out and Series - Discussion

Discussion Forum : Odd Man Out and Series - Pick Wrong No. (Q.No. 8)
Directions to Solve
Find out the wrong number in the given sequence of numbers.

8.
105, 85, 60, 30, 0, -45, -90
0
85
-45
60
Answer: Option
Explanation:

Subtract 20, 25, 30, 35, 40, 45 from successive numbers.

So, 0 is wrong.

Discussion:
26 comments Page 1 of 3.

Meet said:   4 years ago
All numbers except 85 is divisible by 3.
(5)

Divya rawat said:   5 years ago
Right, Thanks @Sonutalwani.

Simran said:   5 years ago
Out of 65 90 94 85 56 which is different?
(2)

Kavya said:   6 years ago
@D B Vekaria.

The wrong answer is 20.

3-1=2, 6-3=3, 1-61=5, 20-11=9, 9-20=11, 70-39=31.
2, 3, 5, 11, 31 are prime numbers except 9.
(1)

Kavya said:   6 years ago
@B D Vekaria.

b) 50, 51, 47, 56, 42, 65, 29.

Answer is 42 because
+1, -4, +9, -16, +25, -36 ------> 1^2, 2^2, 3^2, 4^2, 5^2, 6^2.
But we are getting 1, -4, +9, -14.

Vinay said:   8 years ago
I agree @Bhavana.

We have to select the odd one out so yeah except 85 all others are divisible by 3 and 15.

Bhavana said:   8 years ago
I think 85 is also a correct answer because except 85 all are divisible by 3.
(1)

Dvanthala said:   8 years ago
105-85 = 20.
85-60 = 25.
60-30 = 30.
30-0 = 30.
0-(-45 )= 45.
-45-(-90) = 45.

If we replace 0 by -5 we get sequence such as 20, 25, 30, 35, 40, 45.
(4)

Harsh Gupta said:   9 years ago
Taking divisibility test by 3. Then the answer is 85.
(2)

Sathish said:   9 years ago
Hi guys, all the numbers divisible by 5. So, 0 is the not divided by 5. 0 is the answer.
(1)


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