Mathematics
Write all possible 2-digit numbers that can be formed by using the digits 2, 3 and 4. Repetition of digits is not allowed. Also find their sum.
Number System
1 Like
Answer
We are required to write 2-digit numbers using the digits 2, 3 and 4, where repetition of digits is not allowed.
Out of the given digits, the possible ways of choosing two digits are: 2, 3; 2, 4; 3, 4.
Using the digits 2 and 3, the numbers are 23 and 32.
Using the digits 2 and 4, the numbers are 24 and 42.
Using the digits 3 and 4, the numbers are 34 and 43.
All possible 2-digit numbers: 23, 32, 24, 42, 34, 43.
Sum = 23 + 32 + 24 + 42 + 34 + 43
= 198
Hence, all possible 2-digit numbers are 23, 32, 24, 42, 34, 43 and their sum is 198.
Answered By
1 Like
Related Questions
Arrange the following numbers in ascending order (use place value chart):
67201, 743819, 748391, 67218, 85344
Arrange the following numbers in descending order (use place value chart):
36951, 37140, 723891, 732142, 5718901, 37401
Write all possible 3-digit numbers using the digits 3, 1 and 5. Repetition of digits is not allowed.
Write all possible 3-digit numbers using the digits 7, 0 and 6. Repetition of digits is not allowed. Also find their sum.