exam Maths Puzzle Numerical Ability

Two angles are complementary. One angle is twice as large as the other angle. Find the measures of the angles.

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exam Other Question

The fuel for a chain saw is a mix of oil and gasoline. The ratio of ounces of oil to gallons of gasoline is 7:19. There are 38 gallons of gasoline. How many ounces of oil are there? what is the solution to 5w^5/7=160?