A) 3 : 1
B) 10 : 3
C) 11 : 4
D) 14 : 5
Correct Answer: C
Solution :
Let man's age be 4x years, and son's age be x years. Then, \[4x\times x=196\]\[\Rightarrow \]\[{{x}^{2}}=49\]\[\Rightarrow \]\[x=7.\] Man's present age \[=(4\times 7)\]yr = 28 yr and son's present age = 7 yr Required ratio \[=(28+5):(7+5)=33:12=11:4\]You need to login to perform this action.
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