Question

Let X and Y be the sets of all positive divisors of 400 and 1000
respectively (including 1 and the number). Then n(X,Y)=​

Answer 1

Answer:

12

Step-by-step explanation:

Given Let X and Y be the sets of all positive divisors of 400 and 1000

respectively (including 1 and the number). Then n(X,Y)=

Let X and  Y be set of all positive divisors between 400 and 1000

Therefore intersection of X and  Y will be

n(X ∩ Y) = {1,2,4,5,8,10,20,25,40,50,100,200)

So n(X ∩ Y) = 12