exam Maths Puzzle Numerical Ability

A plane and a line ________ intesect in a single point.

(a) always (b) sometimes (c) never (d) not enough information

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exam Other Question

i dont understand how to do this stuff i am so confused on what to do and what are the (1,3) and stuff for? the length and width of a rectangle are given by consecutive integers. the area of the rectangle is 90cm^2. find the length of a diangonal of the rectangle