Consider the table given below in which the numbers bear certain relationship among themselves along the rows: 29 13 18 33 X 19 30 27 3 Which one of the following numbers is the missing number indicated above by X?

Reasoning : Logical Reasoning & Analytical Ability

Q 248 / 325

UPSC CSE Prelims 2014

Consider the table given below in which the numbers bear certain relationship among themselves along the rows:

29	13	18
33	X	19
30	27	3

Which one of the following numbers is the missing number indicated above by X?

EXPLANATION

Correct Option (D)

The given table exhibits a consistent numerical relationship across its rows. The sum of the numbers in each complete row is constant.

For the first row: 29 + 13 + 18 = 60.
For the third row: 30 + 27 + 3 = 60.

Applying this established pattern to the second row to determine the missing number X:

33 + X + 19 = 60
X = 60 - (33 + 19)
X = 60 - 52
X = 8

Thus, the missing number X is 8.

Incorrect Options:

Options A (19), B (15), and C (14) are incorrect. Substituting any of these values for X in the second row would not result in a sum of 60, thereby failing to conform to the logical pattern observed in the other rows of the table.