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Question
Find the values of the letters in the following and give reasons for the steps involved.
4 A
+ 9 8
------
C B 3
------
Solution
The addition of A and 8 is giving 3 i.e., a number whose ones digit is 3. This is possible only when digit A is 5. In that case, the addition of A and 8 will give 13 and thus, 1 will be the carry for the next step. In the next step,
1 + 4 + 9 = 14
Therefore, the addition is as follows.
Clearly, B and C are 4 and 1 respectively.
Hence, A, B, and C are 5, 4, and 1 respectively.
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