Question

Given set 7 27 55
Options
A 21 35 52.
B 18 42 65.
C 16 40 72.
D 13 30 58.

Answer 1

Answer:

option c (16 40 72)

Step-by-step explanation:

The difference between 1st and 2nd number is even (i.e; 20) also the difference between the 2nd and 3rd number is even (i.e; 28)

from the given options only option C satisfies this condition whereas other options (A,B,C) have both even and odd differences.

Answer 2

C 16 40 72.

GIVEN: Set 7,27, 55
TO FIND: Next in series
SOLUTION:

According to the questions first three elements of the series are:

7,27, 55

Now,

A pattern can be noticed in the given terms.

That is,

The difference between the 1st and the 2nd number is even (i.e; 20) also the difference between the 2nd and 3rd number is even (i.e; 28)

And,

Of the available options, only C satisfies the pattern or condition.

Whereas,

All other three options do not follow the condition that is they don't have even a difference.

Therefore,

The next elements of the series will be 16, 40, 72.

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