সব প্রশ্নে ফিরে যান
Math
There are n students in a school. If r% among the students are 12 years or younger, which of the following expressions represents the number of students who are older than 12?
A) n(1-r)
B) 100(1-r)
C) n(1-r) /100
D) n(100-r)/100
সঠিক উত্তর