Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test Physics Motion in a Straight Line
A girl cycles at a speed of 12 km/h to her friend's house, situated at a distance of 10 km from her house. She returns at a speed of 18 km/h. What is her average speed during the entire trip?
1
14.4 km/h
2
15 km/h
3
15.5 km/h
4
More than one of the above
5
None of the above