Q:

A train travels at an average speed of 18m/s.1. Find the approximate time the train would take to travel 500m.2. The train set off at 7:30 on a 40km jouney. At approximately what time will it reach its destination?​​

Accepted Solution

A:
(1) 27 ⁷/₉ seconds(2) 8: 07 : 15 AM  Step-by-step explanation:(1)If the trains travel 18 m in every second. How many seconds would have it cover 500m18m : 1s500m : ? (x) sWe cross multiply;18 * x = 500 * 1500/18 = x X = 27 ⁷/₉ seconds(2)How long would the same train cover the 40 km journey40km = 40 * 1000m = 4000018m : 1 s40000m : ? (x) sCross-multiply;40000 * 1 = 18 * x40000/18 = xX = 2,222 2/9 seconds2,222 / 6037 minutes ²/₆₀ seconds Lets add the fraction seconds;²/₆₀ + ²/₉ = ¼ second= 37 minutes & ¼ secondsLets add this to the departure time of 7: 30 AM7: 30: 00  + 0 : 37: 15= 8: 07 : 15 AM  Learn More: