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(17)3 5 (17) = 178

This question belongs to Arithmetic Ability Surds And Indices
Surds and Indices
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(17)3.5 × (17)? = 178

Answer & Solution
Correct Answer: Option D
Let (17)3.5 × (17)x = 178
Then, (17)3.5 + x = 178
∴ 3.5 + x = 8
⇒ x = (8 - 3.5)
⇒ x = 4.5
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