exam Maths Puzzle Numerical Ability

PPS

50: In elliptic or spherical geometry, there can be _____ right angle(s) in a triangle.

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exam Other Question

1. In a certain cookie recipe, the ratio of flour to cups of sugar is 3 to 1. If the recipe uses 2 1/4 cups of flour, how much sugar does it use?
please help me express 75degrees in radius. in the terms of pi