Question

in a board exam, 53% passed in Biology, 61%passed in English, 60% passed in Social Studies, 24% in biology and English, 35% in English and Social studies, 27% in Biology and Social studies and 5% in none. percentage of passes in all the three subjects is...

Answer 1

Bio (53+24+27)3= 34.6
English (61+24+35)3= 40
social sci(60+35+27)3= 40.6

percentage of passes in all three subjects more in Social science than other two subjects.

Answer 2

Given:

53% passed in Biology, 60% passed in Social Studies, 61%passed in English, 24% in biology and English, 35% in English and Social studies, 27% in Biology and Social studies and 5% in none.

Let people who passed all the three subjects be x.

Then we will have:

53 + 61 + 60 – 24 – 35 – 27 + x = 95

Æ x = 7.