A) 94
B) 86
C) 96
D) 92
Correct Answer: C
Solution :
Let the Numbers be \[7x,\,\,8x,\] and \[9x\]then, \[49{{x}^{2}}+64{{x}^{2}}+81{{x}^{2}}=3424\] \[\Rightarrow \] \[214{{x}^{2}}=3424\] \[\Rightarrow \] \[{{x}^{2}}=16\] \[\Rightarrow \]\[x=4\] \[\therefore \]Sum of numbers \[=(7x+8x+9x)\] \[=24x\] \[=(24\times 4)=96.\]You need to login to perform this action.
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