Answer :
Answer:
42 books
Step-by-step explanation:
total books = 21×4= 84books
(21/2) × 4 = 21×2 = 42 books on the shelves
remaining books =84-42= 42 books
Answer:
42 books
Step-by-step explanation:
total books = 21×4= 84books
(21/2) × 4 = 21×2 = 42 books on the shelves
remaining books =84-42= 42 books