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Maths Puzzle
Numerical Ability
Use the indicated property to write an expression that is equivalent to the following expression.
(7 + 11) + 2 (associative property of addition)
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(x^2+2)^2
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4 men and 3 women finish a job in 6 days,and 5 men and 7 women can do the same work in 4 days.how long will 1 man and 1 woman take to do the work?