pumpkin2211 pumpkin2211

03-10-2016
Mathematics

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How many odd 4-digit numbers divisible by 5 are there less than 5000?

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DanielTako DanielTako

03-10-2016

So, we only consider 4-digit numbers of the form _ _ _ 5.
The first blank can only be 1,2,3,4, while the other two can be any digit 0 to 9.

So, there are 4 * 10^2 = 400 such numbers.

I hope this helps!

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