A) 10 yr
B) 11 yr
C) 12 yr
D) 13 yr
Correct Answer: A
Solution :
We have \[A=C-3,\] \[A=D+1,\] \[D=B+1,\] \[D=C-4,\] \[C=15\] Thus, \[D=C-4=15-4=11\] \[B=D-1=11-1=10\]You need to login to perform this action.
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