Question

In a school, 3/5 of the staff read daily times and 1/2 read tribune and 1/10 read neither. What of the staff read both types of papers

Answer 1

Answer:

1/5

Step-by-step explanation:

Total will always be 1.

since 1/10 read nothing that means

1-1/10 = 9/10 are reading

we know,

AUB = A + B - AnB

here, A= staff reading daily times

B = Staff reading tribune

AnB = staff reading Both type of papers

AUB = Anyone is reading paper

9/10 = 3/5 + 1/2 - AnB

AnB = 3/5 + 1/2 - 9/10

AnB = 6/10 + 5/10 - 9/10 = (11-9)/10 = 2/10 = 1/5