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Cambridge IGCSE and O Level Additional Mathematics 5 Find how many different four-digit numbers greater than 4000 that can be formed using the digits

Cambridge IGCSE and O Level Additional Mathematics 5 Find how many different four-digit numbers greater than 4000 that can be formed using the digits 1,2,3,4,5,6 and 7 if no digit can be used more than once. 6 Find how many even numbers between 5000 and 6000

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