exam Maths Puzzle Numerical Ability

Suppose you are starting an office-cleaning service. You have spent $315 on equipment. To clean each office you use $4 worth of supplies. You charge $25 per office. How many offices must you clean to break even?

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exam Other Question

find the number of permutations of the first 8 letters of the alphabet for each situation. taking all 8 letters at a time The length of a rectangle is 2ft less than three times the width of the triangle. The area of the rectangle is 65ft2. Find the length and width of the rectangle.