Answer:
laps swam by dan in 15 weeks = 2400 laps
he would be able to reach his objective of 2500 laps if he swims 160 laps each weeks for 16 weeks.
Explanation:
total laps swam by Dan in n number of weeks will be = n×(total laps swan by dan in each week)
it is given that dan swims 160 laps each week
therefore total laps swam by him after 15 weeks will be = 15×160
= 2400 laps
if he swims 160 laps for an extra week he would have swam = 2400 + 160
= 2560 laps
which is more than his objective of 2500 laps
therefore dan would have swam an extra of 60 laps if he swims 160 laps each week for 16 weeks
therefore he would complete his quota of 2500 laps.