Two cars start moving from the same point in opposite directions on a straight road. After 12 km, both cars turned to their left and drove for 9 km. What is the distance between two cars?
- 40 km
- 20 km
- 30 km
- None of these
Explanation
The cars are 24 km apart horizontally and 18 km apart vertically.
Using the Pythagorean theorem, the straight-line distance = √(24² + 18²) = √(576 + 324) = √900 = 30 km.
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