exam Maths Puzzle Numerical Ability

When a positive integer "k" is divided by 6, the remainder is 1. What is the remainder when 5k is divided by 3?
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exam Other Question

Subject: Ratios and areas of similarFigures Question: The ratio of the areas of two parallelograms is 9 to 25. The lenght of the shorter side of the larger parallelogram is 40 The length of a rectangle is 1 cm longer than its width. If the diagonal
of the rectangle is 4 cm, what are the dimensions (the length and the width) of the rectangle?