Question

A company may allow vending machines to be placed next to the cafeteria if 55%

 of the company’s 631

employees ask for it. If 66%

 of the required 55%

employees have already requested the vending machines, how many employees still need to put in a request?

Answer 1

It follows that a company may allow vending machines to be placed next to the cafeteria if  $631\cdot 0.55\approx 347$ employees ask for it. Then $347\cdot(1-0.66)\approx 118$ employees still need to put in a request.