Question

12) The number of students in the three sections of a class are in
the ratio 2:3:4. The average marks scored in each of these
sections is in the ratio 4:3:1. By what percent is the average mark
of the second section more than the class average?
a. 23.27%
b. 28.57%
C. 32.38%
d. 36.74%​

Answer 1

question : The number of students in the three sections of a class are in

the ratio 2:3:4. The average marks scored in each of these

sections is in the ratio 4:3:1. By what percent is the average mark

of the second section more than the class average?

a. 23.27%

b. 28.57%

C. 32.38%

d. 36.74%​

Answer= 28.57%