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15-07-2020
Mathematics

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How many three-digit numbers can you make if you are not allowed to use any other digits except 4 and 9?

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15-07-2020

Answer:

8

Step-by-step explanation:

That total is ...

(number of possibilities in each location)^(number of locations) = 2^3 = 8

The possible numbers are ...

444, 449, 494, 499

944, 949, 994, 999

There are 8 of them.

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