Solve it

intermediate(ipc)course (no) (1460 Points)

16 March 2012  

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