SOLUTION: What is the number of three-digit multiples of 5 that are not divisible by 10? a) 90 b) 100 c) 180 d) 200 e) 1000

Question 1044327: What is the number of three-digit multiples of 5 that are not divisible by 10?
a) 90
b) 100
c) 180
d) 200
e) 1000

Answer by ikleyn(52805) (Show Source): You can put this solution on YOUR website!
.
What is the number of three-digit multiples of 5 that are not divisible by 10?
a) 90
b) 100
c) 180
d) 200
e) 1000
~~~~~~~~~~~~~~~~

In all, there are 999 - 99 = 900 three-digit numbers.

The number of those three-digit numbers that are multiples of 5, is  = 180.

Half of them are multiple of 10, i.e.  = 90.

The other half are those three-digit integers that are multiples of 5, but not multiples of 10.

Answer. There are 90 three-digit integers that are multiples of 5, but not multiples of 10. Option A)

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