exam Maths Puzzle Numerical Ability

The difference of two integers is 9. Five times the smaller is 7 more than three times the larger. Find the numbers

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exam Other Question

In a regular hexagon, the angle measures are 5x-103, 2x+60, 7x-31, 6x-6 and 9x-100. What is the measure of x? I am confused as to how you find this since only 5 of the interior angle measures are given! if cot=0.75, find tan.