Bunuel wrote:

In Gabriel's sheep herd, every sheep has either fleas or lice or both. Half of the sheep have lice, and 84 sheep have both pests. If 94 sheep have lice, how many sheep have only fleas?

A. 10

B. 20

C. 84

D. 94

E. 178

94 sheep have lice

Half the sheep have lice which mean total number of sheep = 2 * 94 = 188

Sheep having both both lice and fleas = 84

Sheep having only lice = 94-84 = 10

So, only lice + both + only fleas = 188

10 + 84 + Only fleas = 188

Only fleas = 94

Answer D

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