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Omni-MATH / Hicham runs 16 km in 1.5 hours. He runs the first 10 km at an average speed of…

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problem

Hicham runs 16 km in 1.5 hours. He runs the first 10 km at an average speed of $12 \mathrm{~km} / \mathrm{h}$. What is his average speed for the last 6 km?
Plain-text mathematical notation (without MathML)
Hicham runs 16 km in 1.5 hours. He runs the first 10 km at an average speed of $12 \mathrm{~km} / \mathrm{h}$. What is his average speed for the last 6 km?
Original LaTeX notation
Hicham runs 16 km in 1.5 hours. He runs the first 10 km at an average speed of $12 \mathrm{~km} / \mathrm{h}$. What is his average speed for the last 6 km?

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