| 6 | 9 | 15 |
| 8 | 12 | 20 |
| 4 | 6 | ? |
A) 5
B) 10
C) 15
D) 21
Correct Answer: B
Solution :
In the first row, \[6\times \frac{3}{2}=9,6\times \frac{5}{2}=15\] In the second row, \[8\times \frac{3}{2}=12,8\times \frac{5}{2}=20\] \[\therefore \] In the third row, missing number \[=4\times \frac{5}{2}=10\]
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