Robert and Tony love to read. Robert reads 30 pages the first day and 20 pages each day after that. Tony reads 40 pages the first day and 15 pages each day after that.

Answer 1

After 5 days:

Robert: 30 + 20 + 20 + 20 + 20 = 110 pages
Tony: 40 + 15 + 15 + 15 + 15 = 100 pages

After 10 days:

Robert: 30 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 + 20 = 190 pages
Tony: 40 + 15 + 15 + 15 + 15 + 15 + 15 + 15 + 15 + 15 = 175 pages