TCS Placement Model Test 8

Assume Total no of students = 100
60% of the students are boys, so Boys=60,Girls=4
No. of girls who scored more than 40 marks = 80% of girls = 80% of 40 = 32.
No. of students who scored more than 40 marks = 60% of Total Students = 60
Therefore No. of boys who scored more than 40 marks = 60-32=28
No. of boys who scored less= Total boys Boys(scored more) = 60- 28=32
Fraction=(scored less)/Total boys = 32/60 =8/15