Simplify: Log3(3) log5(3) log7(5) log9(7) ---- log21(19)

Capgemini aptitude question with a worked answer. Free to practise - no sign-up.

AA) Log21(3)BB) Log21(3 + 5 + 7 + ----- + 19)CC) None of the mentioned optionsDD) Log3(21)

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Answer: B. B) Log21(3 + 5 + 7 + ----- + 19)

The correct option is B: 'Log21(3 + 5 + 7 + ----- + 19)'.

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