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Maths Puzzle
Numerical Ability
In the period of a year, an investor lost twica as much as he gained. If he originally had $10,000and now has $20,000, what amount did he gain and what did he lose?
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book Other Question
Can you help me with this problem? Two cards are drawn from a standard deck of cards. Find the probability.
P(1 heart, 1 club)
Please help me solve this problem. I don't understand how to get the answer.
-5w - 2 + w - 1 / 3 - w - 3w + 4w - 1 + w / 9