| 2 | 6 | ? | ? | |
| 54 | 18 | 81 | 27 |
A) 3 and 9
B) 5 and 18
C) 6 and 12
D) 3 and 21
Correct Answer: A
Solution :
\[2\times 27=54\] \[6\times 3=18\] \[\therefore \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,?\,\,\times 27=81\] \[\Rightarrow \] \[?=\frac{81}{27}=(3)\] \[?\,\,\times 3=27\] \[\Rightarrow \] \[?=\frac{27}{3}=(9)\]
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