Question

in a survey of 400 students in a school,100 were listed as taking apple juice,150 as taking orange juice and 75 were listed as taking both apple as well as orange juice.find how many students were taking neither apple juice nor orange juice.

Answer 1

total students= 400
students taking apple juice=100
students taking orange juice=150
students taking both apple and orange juice =75
students taking neither apple nor orange juice=400-100-150-75= 75 answer

Answer 2

$\geqslant 75$
thinking outside the box