Question

if a trian travels 215 km is 3.50 hr, then 175 km in 1.50 hr, and 345 km in 5.50 hr, what will be the average speed of the trian for the whole trip

Answer 1

80.26km/hr

Step-by-step explanation:

speed formulae is speed =distance travelled ÷ time taken

so, we first calculate the first one that is 215÷ 3.50 to get 61.4...

then, we calculate the second that is 175÷1.50 to get 116.67

Then, we calculate the third one that is 345÷5.50 to get 62.7

Then we add all of the three value we calculated that is 61.4+ 116.67 + 62.7 to get 240.77

then we divide 240.77 by 3 to get the average speed that is 80.26km/hr

Answer 2

70km/h

Explanation: add up distances then divide by total time