Use Cordova Smart Class Software on the smart board in class to do Exe – InterviewSolution

1.	Use Cordova Smart Class Software on the smart board in class to do ExerciseThe cost of 8 books is 72. Find the cost of 20 such bookshe train in 45 mi
Answer» Cost of 8 book is ₹72 So, cost of 1 book is ₹ 72/8 = ₹9so cost of 20 books is ₹ 9 × 20 = ₹180

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