How many 5s are there in 100
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How many 5s are there in 100

[From: ] [author: ] [Date: 13-08-11] [Hit: ]
Note: 55 has two 5s.-5 15 2535 45 50 5152 53 54 55 56 57 58.total 20-100 = 5x5x2x2-20 ... ?......
The answer is 12 - but i want to know why?

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in each set of 10 consecutive numbers there is one 5, except in the ten numbers from 50-59 there are two additional 5's: at 50 and 55. Without these 2 additional 5's, there would only be ten 5's. So there really are 12 5's.

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There are 20 by simple division and also by actual numbers:

5 15 25 35 45 50 51 52 53 54 55 56 57 58 59 65 75 85 95

Note: 55 has two 5s.

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5 15 25 35 45 50 51 52 53 54
55
56 57 58.59 65 75 85 95

(55 is written with two 5s)

total 20

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100 = 5x5x2x2

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20 ... ?
I don't understand how it's 12
Look at it one more time? xD

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100/5=20.
Answer: 20.
Give me best answer.

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Huh?

5 x 20 = 100

What's wrong with you?
1
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