How many three-digit numbers have the first digit equal to the sum of the other two digits?
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Answered by
5
Answer:
Don't know
Step-by-step explanation:
the answer
Answered by
2
Answer:
We have four digits.
The numbers we need to make have 3 digits.
There are 4 choices for the first digit, 4 choices for the second digit and 4 choices for the third digit since repetition is allowed.
Hence, the total number of 3 digit numbers that can be made is equal to:
4×4×4=4
3
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