AJB77 wrote:

In a restaraunt, there are 3 popular dishes A, B and C . On a given evening, 71% of the diners ate Recipe A, 84% ate B and 86% ate C. The percentage of diners who ate all the dishes must be greater than what what number?

A. 47%

B. 42%

C. 41%

D. 40%

E. 49%

Let's look at it this way, what's the least pssible number of eaters who ate 3 dishes.

we have 71+84+86=241

for the least of 3 dishes eaters, we have maximum eaters of 2 dishes, that's 200

we're left with 41. so it must be greater than 40, D.