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OpenStudy (anonymous):
How many numbers greater than 4000 can be formed from the digits 3, 5, 7, 8 and 9? (Repetitions not allowed)
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ganeshie8 (ganeshie8):
you will have two cases, you need to add both : Case I : 4 digit numbers Case II : 5 digit numbers
OpenStudy (anonymous):
OHHH so you don't have to use all the numbers?
OpenStudy (anonymous):
thankyou!! :)
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