Total number of students who opted fo Sociologyy and Philosophy together is how much less than total number of students wo opted for Sanskrit and History together ?

Options

A. 0.24
B. 27
C. 30
D. 33

Explanation

`-((20)/(100)xx150+(30)/(100)xx200+(60)/(100)xx250+(26)/(100)xx350+(20)/(100)xx200)`
`=420-30-60-150-91-40=150`
From class XI: 30
From class XII: 71
So required number `=49+30+71=150`