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1. If Andrew can cover 5 kilometers in 20 minutes in his bicycle, how long can he cover in 60 minutes?
2. Twelve (12) men can build a house in 120 days, how many men are needed to build the house in 90 days under the same condition?
3. In a drugstore, the ratio of N95 mask to surgical mask to copper mask is 3:5:2. If there are 570 pieces of face masks, how many are there of each kind?
1. If Andrew can cover 5 kilometers in 20 minutes in his bicycle, how long can he cover in 60 minutes?
2. Twelve (12) men can build a house in 120 days, how many men are needed to build the house in 90 days under the same condition?
3. In a drugstore, the ratio of N95 mask to surgical mask to copper mask is 3:5:2. If there are 570 pieces of face masks, how many are there of each kind?
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Answer:
number 1 ans:300 number 2 ans:15 men