exam
Maths Puzzle
Numerical Ability
John can paint the house in 4 hours. Mike can paint the same house in 6 hours. How long would it take both John and mike to paint the same house together.
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3a^2+15a
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a^-25a
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Find three consecutive (not even) integers such that the sum of the twice the first, six times the second and three times the third is 133.