1. The answer is 5 cents. If the ball cost 10 cents, the racket would cost 1 dollar and 10 cents while that’s how much both items cost together.
2. The answer is 5 minutes. The number of machines doesn’t influence the amount of time needed for producing one detail.
3. The answer is 47 days, not 24. If the amount of water lilies is doubling every day and the amount of days needed for covering the pond completely is 48, it’s logical that the lilies will cover half of the pond one day before it.
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