average age of a group of 10 students is 20 years,if average age increased by two years when two new students are joined then the average age of two new students
a).84 b).64
c).32 d).42
CA Hemang Shah
(PRACTICE)
(658 Points)
Replied 16 March 2012
CA Hemang Shah
(PRACTICE)
(658 Points)
Replied 16 March 2012
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