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Question
Find the value of the letters in the following question.
8 A B C
– A B C 5
D 4 8 8
Solution
8 A B C
Given, – A B C 5
D 4 8 8
In the ones column, C – 5 = 8
Obviously, 13 – 5 = 8, so C = 3
In the ten’s column, B – (C + 1) = 8
⇒ B = 8 + C + 1
⇒ B = 8 + 3 + 1
⇒ B = 12 i.e. B = 2
In the hundred’s column, A – (B + 1) = 4
⇒ A = 4 + B + 1
⇒ A = 4 + 2 + 1 = 7
In the thousand’s column, 8 – A = D
⇒ 8 – 7 = D
⇒ D = 1
Hence, A = 7, B = 2, C = 3 and D = 1
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