Darrell has run many marathons and keeps track of all of his finishing times. At a race last month, he finished in 210 minutes. At his next race, he finished with a time that was 20% longer. What was his finishing time at the most recent race?
His finishing time at the most recent race was 252 minutes.
To calculate this, we first need to find 20% of his finishing time at the previous race:
20% of 210 minutes = 0.20 x 210 = 42 minutes
His finishing time at the recent race is his previous finishing time plus the additional 20%:
210 + 42 = 252 minutes
Therefore, Darrell's finishing time at the most recent race was 252 minutes.