exam Maths Puzzle Numerical Ability

hI i have done this and would like to know if i am right . I took me 5 minutes to do it. Hope you help me. Tahnks


TWo numbers differ by 3. the sum of teh larger and one fourth the smaller is 13. What are the numbers.

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exam Other Question
The roots of the equation 2x^2-5=0 are

1) imaginary 2) real, rational, and equal 3) real, rational, and unequal

4) real and irrational Find the imaginary solutions: x^2 + 20x + 101 = 0