A) 110
B) 100
C) 70
D) 40
Correct Answer: A
Solution :
Ages of the persons \[=4x\] and \[7x\] years. \[\therefore \] \[7x-4x=30\Rightarrow 3x=30\] \[\Rightarrow \] \[x=10\] \[\therefore \]Sum of their ages\[=4x+7x=11x\]years \[=11\times 10=110\]yearsYou need to login to perform this action.
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