exam Maths Puzzle Numerical Ability

6destop and 2 notebook = 3 dvd free scheme 1

9desktop and 4 notebook = 6 dvd free scheme 2

i am having 98 desktop and 60 laptop which scheme will give me best output

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exam Other Question

Solve by quadratic Equation.
3x^2-6x+2=0

Please explain.
How do you find a fraction between a pair of fractions. ex: 7/12, 3/4
Thank you!