90% ofall students passeed in Hindi, 85% in Maths and 150 students passed in both. Find the total number of students in the school.
Let the total no. of students in the school= x
Number of students who passed Hindi= 90% of x
Number of students who passed Maths= 85% of x
and
Number of students who passed both Hindi & Maths=150
Hence, the total no. of students in the school= 200