Three of the following four are alike in certain way and hence form a group. Which one of the following does not belong to that group ?

Mental Ability - Questions

BHF

OKG

LDJ

ZTY

Correct Answer : Option (B) - OKG

Explanation :

OKG

Remaining all are not in series

only OKG is in series of(15,11,7)

Here it follows the random difference of '4'.

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Q .

In the following question :

Various terms of an alphanumerical series are given with one or more terms missing as shown by (?).

Choose the missing terms out of the given alternatives. BMO, EOQ, HQS, ?

SOV

LMN

KSU

SOW

Correct Answer : KSU

Explanation : The first letter moves 3 steps forward. The second and third letters move 2 steps forward.

Q .

What should come in place of the question mark (?) in the following number series? 8, 6, 9, 23, ?

Correct Answer : 87

Explanation :

Given number 8, 6, 9, 23, ?

The pattern of given series is :

8 x 1 - 2 = 6 6 x 2 - 3 = 9 9 x3 - 4 = 23 23 x4 - 5 = 87