Question

The chairs in a school hall were arranged in 15 rows with 28 chairs in each row if these chairs were rearranged into rows of 20,how many rows of chairs would there be

Answer 1

Answer: 21

Explanation:

Since the chairs in a school hall were arranged in 15 rows with 28 chairs in each row, the total number of chairs will be:

= 15 × 28 = 420

If they were arranged in 20 rows, the number of chair in each row will be:

= 420/20

= 21