how many 4 digit number are there whose sum of its digit is 3
Answers
Answer:
10 numbers
Step-by-step explanation:
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Step-by-step explanation:
Numbers summing to three can only have four potential digits: 0, 1, 2, and 3. Let’s work through each of them.
Numbers summing to three can only have four potential digits: 0, 1, 2, and 3. Let’s work through each of them.No four digit numbers can start with 0. 0 numbers.
Numbers summing to three can only have four potential digits: 0, 1, 2, and 3. Let’s work through each of them.No four digit numbers can start with 0. 0 numbers.If the first digit is 1, then the other numbers add to 2. So, they can be any of: 002, 020, 200, 011, 101, 110. 6 numbers.
Numbers summing to three can only have four potential digits: 0, 1, 2, and 3. Let’s work through each of them.No four digit numbers can start with 0. 0 numbers.If the first digit is 1, then the other numbers add to 2. So, they can be any of: 002, 020, 200, 011, 101, 110. 6 numbers.If the first digit is 2, then the other numbers add to 1. So, 001, 010, 100. 3 numbers.
Numbers summing to three can only have four potential digits: 0, 1, 2, and 3. Let’s work through each of them.No four digit numbers can start with 0. 0 numbers.If the first digit is 1, then the other numbers add to 2. So, they can be any of: 002, 020, 200, 011, 101, 110. 6 numbers.If the first digit is 2, then the other numbers add to 1. So, 001, 010, 100. 3 numbers.If the first digit is 3, then the other numbers add to 0. So, they can only be 000.
Numbers summing to three can only have four potential digits: 0, 1, 2, and 3. Let’s work through each of them.No four digit numbers can start with 0. 0 numbers.If the first digit is 1, then the other numbers add to 2. So, they can be any of: 002, 020, 200, 011, 101, 110. 6 numbers.If the first digit is 2, then the other numbers add to 1. So, 001, 010, 100. 3 numbers.If the first digit is 3, then the other numbers add to 0. So, they can only be 000.0 + 6 + 3 + 1 = 10 numbers.