If the mean of the following distribution is ...

ICSE Class X Math 2018 Paper

Question : 23 of 32

Marks: +1, -0

If the mean of the following distribution is 24 , find the value of '

a

Marks	$0-10$	$10-20$	$20-30$	$30-40$	$40-50$
Number of students	7	$a$	8	10	5

Go to Question:

Prev Question

Next Question