Number Systems
Quick practice
Question 1 of 5
The average weight of the students in a class is 60 kg. If a group of 40 students, with an average weight of 75 kg, joins the class, the average weight of the entire class increases to 70 kg. What is the initial number of students in the class?
A
10
B
20
C
40
D
50
Get unlimited practice with CAT & Other MBA Entrance Tests subscription
Boost your performance with adaptive practice tests
Practice every concept in the syllabus
Compare your speed and accuracy with your peers
Download the app and practice on the go