Form the intersection for the following sets. R={10, 15, 20}
S = {20, 25}
R ∩S=

{10,15,25}

{10,15,20,25}

{20}

{}

Your required answer is option is {20}.

Step-by-step explanation:

Hey, there!!

The reason for above answer is we generally find intersections among the sets by extracting the common elements of the sets.

Here,

R = {10,15,20}

S = {20,25}.

Now, 20 is common im both so,

R intersection S = {20}.

Hope it helps...

b) is 2.2

Step-by-step explanation: