how many numbers between 100 to1000 have the digit 7 exactly once
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Answer:
The answer is 8×9×1=72. please mark me as brainliest
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Answer:
Thus units place has 7. so it can be filled in only one way.
Thus there are 8x9x1 = 72 no.s of the first kind. So, the total no. of required type of no.s = 72+72+81 = 225
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