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Mathematics 12 Online
OpenStudy (anonymous):

The average age of a group of 5 teenagers is p years old. When Chong and Hariz, both 15 years old, join the group, what is the total age, Y, of all the teenagers, in an algebraic expression? (The answer given is Y=5p+30) please help!!

OpenStudy (anonymous):

Total age of group = 5 X p now as two age viz. 15 and 15 are added to it therefore new total age = 5p +30

OpenStudy (anonymous):

ic ok thanks!

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