If A3 + 8B = 150, then the value of A + B is

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Solution

The correct option is A 13
We have, A3 + 8B = 150
Here, 3 + B = 0, so 3 + B is a two-digit number whose unit's digit is zero.
$∴$ 3 + B = 10 $\Rightarrow$ B = 7
0 as unit place and 1 as carry
Now, considering ten's column, A + 8 + 1 = 15
$\Rightarrow$ A + 9 = 15
$\Rightarrow$ A = 6
Hence, A + B = 6 + 7 = 13
Therefore, option a is correct.

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