0

Guest

Courses New

Q6. There 40 students in a chemistry class and 60 students in physics class. Find the number of students which are either in Physics class or Chemistry class in the cases. (i) the two classes meet at the same hour. (ii) the two classes meet at different hours and 20 students are enrolled in both the subjects. can u pls explain clearly im not able to understand the question

Q6. There 40 students in a chemistry class and 60 students in physics class. Find the number of students which are either in Physics class or Chemistry class in the cases. (i) the two classes meet at the same hour. (ii) the two classes meet at different hours and 20 students are enrolled in both the subjects.  
can u pls explain clearly im not able to understand the question
 

Grade:12

1 Answers

Vikas TU
14149 Points
7 years ago
Total students when they meet at the same hour.
60 + 40 = 100.
In this 100 students the common would be:
60 – 40 = 20.
the AUB = A + B – AintersectionB = > 60 + 40 – 20 = > 80

Think You Can Provide A Better Answer ?

Other Related Questions on Algebra

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More