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Problem of the Week
Problem C
See You No More

Two boats are travelling away from each other in opposite directions. One boat is travelling east at the constant speed of \(8\) km/h and the other boat is travelling west at a different constant speed.

At one point, the boat travelling east was \(200\) m east of the boat travelling west, but \(15\) minutes later they lose sight of each other.

If the visibility at sea that day was 5 km, determine the constant speed of the boat travelling west.

Theme: Number Sense