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How many even numbers are there with three digits such that if 5 is one of the digits then 7 is the next digit?

How many even numbers are there with three digits such that if 5 is one of the digits then 7 is the next digit?

Grade:7

1 Answers

Sher Mohammad IIT Delhi
askIITians Faculty 174 Points
9 years ago
when 5 is first digit , 57_, 5 numbers,
when 5 is second digit , _57 , zero number , the total numbers are 5

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