29 A student has N425. He bought seven ex-
ercise books and he was given N5 as
change. What is the average cost of one
exercise book?
A N60.71 B N50 C N60
DN50.71 E
N75
The average cost of one exercise book is N60 He was given N5 change which means he spent a total of N420 Therefore,he used N420 to buy 7 books,the average cost of one book= 420/7=60.Thanks
