| Directions for Questions - In the following questions a rectangle is given in which numbers have been filled according to some rule. One space has been left blank in each question. Find out the correct number. |
| 10 | 4 | 7 |
| 20 | 6 | ? |
| 30 | 8 | 19 |
A) 13
B) 15
C) 17
D) 21
E) 26
Correct Answer: A
Solution :
In each column, middle number is the average of the other two.
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