Rosy is 2 years elder than Mary. After 6 years the total of their ages will be 7 times of their current age. Then age of Rosy is :	Choose one:	A) 10 Years	B) 16 Years	C) 17 Years	D) 20 Years	E) Data inadequate
Data inadequate   Given data are inadequate.
<result>E</result>
Rosy is 2 years elder than Mary. After 6 years the total of their ages will be 7 times of their current age. Then age of Rosy is :