exam Maths Puzzle Numerical Ability

m�</font>1:m�</font>2 = 1:5. Find m�</font>2

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The polynomial f(x) divided x-3 results in a quotient of x^2+3x-5 with a remainder of 2. Find f(3).
a. -5
b. -2
c. 2
d. 3 Solve by elinimation
1/3x+2/1=2/1
2/3x-3/5y=1/5
Solve by elinimation
x-y=-13
9x-4y=-97
Solve by substitution
x+y=7
y=x-1