A person walks 4 km north, then 3 km east. How far is the starting point?
A person walks 4 km north, then 3 km east. How far is the starting point?
एक व्यक्ति 4 किमी उत्तर की ओर, फिर 3 किमी पूर्व की ओर चलता है। वह प्रारंभिक बिंदु से कितनी दूर हैं?
Detailed Solution & Logic
Correct Answer:
5 km/ 5 किलोमीटर
- The person walks 4 km north and then 3 km east.
- This forms a right-angled triangle:
- One side = 4 km (north)
- Other side = 3 km (east)
- The distance from the starting point is the hypotenuse:
$ \sqrt{4^2+3^2}=\sqrt{16+9}=\sqrt{25} $=5 km
✅ Answer: 5 km
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