DSSSB · Mathematics
If a person covers three equal distances at the speed of 10 km/h, 4 km/h and 1 km/h respectively, find his average speed during the entire journey.
- 2 2/9 km/h
- 1 2/9 km/h
- 4 2/9 km/h
- 3 2/9 km/h
यदि कोई व्यक्ति क्रमशः 10 km/h, 4 km/h और 1 km/h की चाल से तीन समान दूरियाँ तय करता है, तो संपूर्ण यात्रा के दौरान उसकी औसत चाल ज्ञात कीजिए।
- 2 2/9 km/h
- 1 2/9 km/h
- 4 2/9 km/h
- 3 2/9 km/h
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