Class has 105 students. Boys are 40%, girls 60%. Shivani is 30th from top, 20 girls ahead. Find number of girls behind her.
Show answer & explanation
Correct answer: A
Explanation
Total students = 105
Girls = 60% of 105
= 105×60/100
= 63
Shivani is 30th from top
So students above her = 29
Total girls = 63
Girls ahead Shivani are given = 20
So girls behind = 63 – 20 -1 = 42
Hence, the correct answer is option 1.