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प्रश्न
If A3 + 8B = 150, then the value of A + B is ______.
पर्याय
13
12
17
15
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उत्तर
If A3 + 8B = 150, then the value of A + B is 13.
Explanation:
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
⇒ B = 7
Now, considering ten’s column,
A + 8 + 1 = 15
= A + 9 = 15
⇒ A = 6
Hence, A + B = 6 + 7 = 13
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