Hour | Distance Travelled (in Km) X | Distance Travelled (in Km) Y |
1St | 25 | 30 |
2nd | 35 | 45 |
3rd | 25 | 40 |
4th | 20 | 30 |
5th | 25 | 20 |
6th | 20 | 15 |
Y’s average speed (km/hour) during the first five hours is:
Options
a) 31
b) 34
c) 32
d) 33
Solution
As per question
Sum of first five hours speed = 30 + 45 + 40 + 30 + 20 = 165
Y’s average speed the first five hours = 165/5 = 33
Ans: d) 33