Multiple choice A boy runs at a speed of $8$ m/s. How long does he take to cover a distance of $1$ km? $100$ sec $125$ sec $12.5$ hr None of these Reveal answer Fill a bubble to check yourself B Correct answer Explanation Distance = 1 km = 1000 m. Speed = 8 m/s. Time = Distance / Speed = 1000 / 8 = 125 seconds. AI explanation AI 1 First, convert the distance from kilometers to meters, making 1 km equal to 1000 meters. Using the Time formula (Time = Distance divided by Speed), divide 1000 meters by the speed of 8 m/s to get 125 seconds. The result is 125 sec. Thanks Wrong explanation