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Evaluate ef / e+f for e = 6 and f = 11.

[A] 66/17

[B] 198/17

[C] 66/85

[D] 17/66

**Comments**

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Evaluate ef / e+f

when e = 6 and f = 11, the expression becomes:

(6)(11) / (6 + 11)

= 66/17

**Ans A**

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