Question

You bike 5 miles the first day of your training, 5.2 miles the second day, 5.6 miles the third day, and 6.4 miles the fourth day. If you continue this pattern, how many miles do you bike the seventh day?

Answer 1

11.6 miles

Explanation:

The second day adds .2 miles. Every day following adds double what the last day added. Day 3 added .4 miles (5.6), day 4 added .8 (6.4), day 5 added 1.6 (8), day 6 added 3.2 (11.2), and finally, day 7 would have added 6.4 miles to th previous day making it 11.6 miles.