A) 21
B) 48
C) 84
D) 108
Correct Answer: C
Solution :
[c] Let the number be x and 4x. Then, \[84\times 21=x\times ~4x\] or \[4{{x}^{2}}=1764\] or \[{{x}^{2}}=441\] or x = 21 \[\Rightarrow \]\[4x=4\times 21=84\] Thus the largest number = 84You need to login to perform this action.
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