DSSSB · Mathematics
If a person covers three equal distances at the speed of 10 km/hr, 5 km/hr and 2 km/hr respectively, find his average speed during the entire journey.
- 3.75 km/hr
- 5.75 km/hr
- 6.75 km/hr
- 4.75 km/hr
यदि एक व्यक्ति तीन समान दूरियाँ क्रमशः 10 km/hr, 5 km/hr और 2 km/hr की चाल से तय करता है, तो पूरी यात्रा के दौरान उसकी औसत चाल ज्ञात कीजिए।
- 3.75 km/hr
- 5.75 km/hr
- 6.75 km/hr
- 4.75 km/hr
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