# Section-1: Numerical Logic Solved QuestionLogical Reasoning Discussion

Common Information

There are two rows of numbers in each question. The upper row is complete and in the lower one number is missing. Find a suitable number to fill the blank space so that the symmetry with the upper row is maintained.

Q.

Common Information Question: 1/2

Table below can be scrolled horizontally

 17 102 12 15 ? 10
 ✖ A. 211 ✖ B. 125 ✖ C. 117 ✔ D. 75

Solution:
Option(D) is correct

From the first row, $\dfrac{17 \times 12}{2} = 102$

From the second row, $\dfrac{15 \times 10}{2} = 75$

Hence, option D is the correct choice