Zara has forgotten her 4-digit PIN code. She knows the first digit is a factor of 10 and the 4 digits make a number divisible by 2. How many different sets of 4 digits could it be?

Zara has forgotten her 4-digit PIN code.

She knows the first digit is a factor of 10 and the 4 digits make a number divisible by 2.
How many different sets of 4 digits could it be?

1 Answer

Zara has forgotten her 4-digit PIN code. She knows the first digit is a factor of 10 and the 4 digits make a number divisible by 2. How many different sets of 4 digits could it …

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