Hello, transgalactic!

Bank L has 40% of people

Bank P has 50% of people

Bank M has 30% of people

15% are both in bank L and bank P

13% are both in bank L and bank M

11% are both in bank P and bank M

5% are in all three banks

Percent of people who are only in one bank of the three:

. . (a) 11% . . (b) 17% . . (c) 29% . . (d) 57% . . (e) 86%

i have built this diagram and got 57% from suuming the areas which are free.

i was told that my diagram is wrong because i didn't mention the people

. . who don't have any bank,

How to know if there are people who are not present in any bank?

What is their percentage?

Question (B): Find presentage of people with at least one bank?

. . (a)14% . . (b) 43% . . (c) 57% . . (d) 86%

in my diargam every one has a bank so its 100% . No!

Where is my mistake?

Your diagram is correct.

Did youthe numbers in your diagram?add

We find that they add up to 86%.

This means that 14% is outside of the three rings.

Those are the people who havebank.no