exam Maths Puzzle Numerical Ability

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Find the dimensions of a rectangle "a" with the greatest area whose perimeter is 30 feet.

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exam Other Question

A living room measures 32 cm by 40.5 cm on an architect's blueprint. The scale of the drawing is 5 cm = 1 m.

What is the actual size of the living room? Statistics. Sam must have an average of 70 or more in his summer course to
obtain a grade of C. His first three test grades were 75, 63, and 68. Write an inequality
representing the score that Sam must get on the last test to get a C grade.