`7^(2.3) xx 49^(4.7) xx 63^(3.4) xx 81^(5.85) = 63^?`

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Q 1556645574.     `7^(2.3) xx 49^(4.7) xx 63^(3.4) xx 81^(5.85) = 63^?`
UNITED BANK OF INDIA 2006
A

`15.2`

B

`15.1`

C

`25.1`

D

Cannot be determined

E

none of these

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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