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Maths Puzzle
Numerical Ability
translate "the quotient of a number and seven is two" into an equation and solve.
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book Other Question
Solve the nonlinear system:
2x^2+y^2= 6
x^2-4y^2= -15
1. Paula is 6 years old. Her uncle is 4 times as old. How old will Paula be when she is half as old as her uncle?
Please explain and answer.. thanks