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 solder than 12?
A) n(1-r)
B) n ( 100-r) /100
সঠিক উত্তর
C) n(1-r)/100
D) 100(1-r)n