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If a b = (a b) + b then 5 7...

This question belongs to Arithmetic Ability Algebra
Algebra
?

If a ⊕ b = (a × b) + b, then 5 ⊕ 7 equals to?

Answer & Solution
Correct Answer: Option C
$$\eqalign{ & a \oplus b = \left( {a \times b} \right) + b \cr & \Rightarrow 5 \oplus 7 \cr & = \left( {5 \times 7} \right) + 7 \cr & = 35 + 7 \cr & = 42 \cr} $$
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