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To find the number that 12 is 40% of, you can set up a proportion. Let x represent the unknown number. The proportion would be: 12/x = 40/100. Cross multiplying gives you: 12 * 100 = 40x. Simplifying further, you get: 1200 = 40x. Dividing both sides by 40 gives you x = 30. Therefore, 12 is 40% of 30.

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Wiki User

10y ago

12 is 30% of 40.

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12 is 30 percent

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Wiki User

8y ago

12% of 333 and 1/3 = 40

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Desire Nozey

Lvl 2
4y ago

12

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Caoimhe Ryan

Lvl 2
2y ago

30

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Q: 12 is 40 percent of what number?
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