exam
Maths Puzzle
Numerical Ability
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7x - 2 + 3x - 9
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exam Other Question
"Bob takes 7 hours to mow his lawn. Sally mows the same lawn in 4 hours. How long will it take them together.?
What is the formula to solve this question?"
√2(9 √5 - 7 √9)=? I am finding it very hard to solve this type of problem. Can you help me out?