exam
Maths Puzzle
Numerical Ability
A is 20 years older than B. He is also 6 times as old as B. find their ages.
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exam Other Question
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Rewrite the middle term as the sum of two terms and then factor by grouping
x^2-14x+45
Solve the following:
3x-5y+2z=19
5x+2y-3z=-8
-2x+3y+5z=7
