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Can u guys explain how to get the answer plzzz I need help with 32

Can u guys explain how to get the answer plzzz I need help with 32-example-1
User Haziq
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1 Answer

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To determine which answer is correct, apply the given ratio. 1/20:? Just by looking at it we know C is wrong. 4:100 is simplified to 1:25. B is also wrong, as 180:9 is 20:1, which is backwards from 1:20. However, A is correct because 9:180 is 1:20. D is also wrong for the same reasons B and C are wrong. Your answer is A!
User Omrakhur
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