In each of the following cases, find the least value/values of letters used in place of digits : 1 2 A + 6 A B = A 0 9

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Firstly, we will find the value of A. Clearly, 2 + A is a number whose ones digit is 0. ⇒ 2 + A = 0, 2 + A = 10, 2 + A = 20; and so on. ⇒ A = 0 - 2, A = 10 - 2, A = 20 - 2; and so on. ⇒ A = -2, A = 8, A = 18; and so on. Since, A is a digit. ∴ A = 8. Secondly, we will find the value of B. Clearly, 8 + B is a number whose ones digit is 9. ⇒ 8 + B = 9 , 8 + B = 19 , 8 + B = 29; and so on. ⇒ B = 9 - 8 , B = 19 - 8 ,B = 29 - 8; and so on. ⇒ B = 1 , B = 11 , B = 21; and so on. Since, B is a digit. ∴ B = 1. A = 8 and B = 1.

Mathematics

In each of the following cases, find the least value/values of letters used in place of digits : 1 2 A + 6 A B = A 0 9

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