Question

23 : 161 : : 19 : ___
(A) 127 (B) 133
(C) 1137 (D) 159
In the following questions, there is some relationship between the two
terms to the left of : : and the same relationship holds between the two terms to its right. You are required
to find out the relationship between the first two letters / numbers and choose the letter / number from the
given alternatives, which bears the same relationship to the third letter / number as the first two bear.

Answer 1

Step-by-step explanation:

127 will be the answer because

23*6-17

19*6-17. 127

Answer 2

The unknown number is 133.

Step-by-step explanation:

The given question is 23 : 161 : : 19 : ____

Let the unknown number be 'x'.

Then, we can write the above question as 23: 161:: 19: x

It can also be understood as $\frac{23}{161} = \frac{19}{x}$

On cross-multiplication, we obtain,

$23\times x = 19 \times 161$

or $x = \frac{19 \times 161}{23}$

or x = 133