Question (11/85)

Find the value of n in expression: `(25)^7.5 xx (5)^2.5 xx 1/((125)^1.5) = 5^n`

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(A)  8.5

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(B)  13

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(C)  16

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(D)  17.5

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Question (12/85)

Find the value of n in expression: `(18)^(3.5) -: (27)^(3.5) xx (6)^(3.5) = 2^n`

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(A)  3.5

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(B)  4.5

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(C)  6

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(D)  7

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