Teaching Bihar STET Paper 1 (माध्यमिक) Mock Test 2024 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
16 km/h
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