MBA Exam

According to a survey, at least 70% of people like apples, at least 75% like bananas and at least 80% like cherries. What is the minimum percentage of people who like all three?
Please post solution

1) 30
2) 15
3) 25
4) 20

Read Solution (Total 1)

70+80+75=225
so by pigeon hole principle it's 25
10 years agoHelpfull: Yes(0) No(0)

MBA Other Question

If x, y, z are real numbers such that x+y+z=4 and x^2+y^2+z^2=6, then x,y,z lie in: (Please post solutions):

1) [3/2,2]
2) [2/3,2]
3) [0,2/3]
4) None
If a > 0, b > 0, c > 0 and 30abc = 256. Find minimum value of 3a + 4b + 5c?

1) 28
2) 18
3) 24
4) 48