Question

2: 10 : : 26 : ?
(a) 50
(c) 42
(b) 36
(a) 20​

Answer 1

Answer:

HERE IS YOUR ANSWER...

2:10::26:X

AS WE KNOW THAT

THE PRODUCT OF MEAN = THE PRODUCT OF EXTREAM.

a:b::c:d

= a & d are extream

= b & c are mean

So, here we have to find d

so , According to our rule

2 x X = 10 x 26

2X = 260

X = 260/2

X = 130

Answer 2

Answer:

The correct answer is option (a) 50.

Explanation:

The given sequence is,

2: 10 : : 26 : ?

We have to find out the relation between the numbers of the given sequence.

We can write 2 as,

2 = 1 + 1 = 1² + 1

Similarly,

10 = 9 + 1 = 3² + 1

26 = 25 + 1 = 5² + 1

∴ The relation is that we get the number by squaring the successive odd number and adding 1 to it.

So, the next odd number is 7.

∴ Next number of sequence = 7² + 1

                                               = (7 × 7) + 1

                                               = 49 + 1 = 50

Hence, 2 : 10 :: 26 : 50.

The correct answer is option (a).

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