UCEED 2022

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Q16.A system of gears and belts is shown below. The diameters of the gears M, N, P, Q, R and S are 3, 1, 2, 1, 3 and 2 meters respectively. If the gear M is rotating at 100 rpm, what is the rpm of gear S?

Q18.The perimeter of the equilateral triangle and the regular hexagon shown in the figure are equal. The circumference of the red circle inscribed in the triangle is 10 cm. What is the circumference of the blue circle inscribed in the hexagon?

UCEED2022Q17·nat·Medium114 attempts

The given 3D object is made by combining three shapes - pentagons, squares and triangles. What is the total number of squares?

Your answer

Keyboards off — use the numpad, just like on exam day.