s=son's age now
d=daughter's age now
(s-8)/(d-8)=2
s-d=5
solve about equations:
d=13 (C)
Sent from my SM-G935W8 using GMAT Club Forum mobile app
d=daughter's age now
(s-8)/(d-8)=2
s-d=5
solve about equations:
d=13 (C)
Sent from my SM-G935W8 using GMAT Club Forum mobile app
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