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The digit 9 appears 20 times in the digits 1 - 100, as follows: 9 19 29 39 49 59 69 79 89 90 91 92 93 94 95 96 97 98 99 . 99, of course, has number 9 twice.

Q: Why is the answer 20 to the question if you were puting numbers on new changing room lockers to be numbered from 1 to 100 how many times would you use the number 9?

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64 and 65

20

20

First, take 137 ÷ 2 and you get 68.5. 68.5 is the average. What two numbers average 68.5, 68 and 69. The same two numbers equal 137.

even numbers are on left

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20 isn't the answer to that question.

64 and 65

20

yes

The lockers with square numbers will be open. This is because they are the only numbers with an odd number of factors.

20

8 contain the digit 9. Locker numbers are 9, 19, 29, 39, 49, 59, 69, 79.

First, take 137 ÷ 2 and you get 68.5. 68.5 is the average. What two numbers average 68.5, 68 and 69. The same two numbers equal 137.

Trick question all numbers are divisible by four ,but only 175 result in whole numbered answers

The answer will depend on how many bricks there are, and also on which bricks are numbered and which are not.The answer will depend on how many bricks there are, and also on which bricks are numbered and which are not.The answer will depend on how many bricks there are, and also on which bricks are numbered and which are not.The answer will depend on how many bricks there are, and also on which bricks are numbered and which are not.

they are numbered by their Atomic numbers

you find it on a pine tree