exam Maths Puzzle Numerical Ability

The sum of the present ages of Eric nd his father is 58 years. In 10 years, his father will be twice as old as Eric will be at that time. Find their present ages.

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exam Other Question

pLEASE HELP WITH THE FOLLOWING
THE STUDENT TEACHER RATIO FOR WASHINGTON HIGH WAS REPORTED TO BE 27.5 TO 1. IF THERE ARE 42 TEACHERS, THEN HOW MANY STUDENTS ARE THERE?
i GET 9,982 IS THIS CORRECT? Solve the equation.

y 2 - 15 y + 44 = 0