Mathematics
For
the value of A is :
3
5
8
none of these
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Answer
Clearly, A + 1 is a number whose ones digit is 9.
A + 1 = 9, A + 1 = 19, A + 1 = 29; and so on
⇒ A = 9 - 1, A = 19 - 1, A = 29 - 1; and so on
⇒ A = 8, A = 18, A = 28; and so on
Since A is a digit. So A = 8
Hence, option 3 is the correct option.
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