Numerical Logic
Logical Reasoning

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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

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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


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