A) 48
B) 12
C) 84
D) 108
Correct Answer: C
Solution :
[c] Let the small number is x and large number is 4x Then, \[x\times 4x=21\times 84\]\[\Rightarrow \]\[4{{x}^{2}}=21\times 84\] \[\therefore \] x = 21 Then, the required large number \[=21\times 4=84\] |
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