Question

Of 32 people who save paper or bottles or both for recycling, 30 save paper and 14 save bottles. Find the number of those who: (i) save both. (2 marks) (ii) save only bottles.

Answer 1

Answer:

save both=14 people,save bottles=14 people

Step-by-step explanation:

please mark me as brainliest and follow me and rate 5 stars please hope it helps please

Answer 2

Answer:

Number of 12 people save both and number of 2 people save only bottles.

Step-by-step explanation:

Given number of people who save or bottles =32

number if 30 people save paper and 14 save bottles.

We know,

$N(P∪B)=N(P)+N(B)−N(P∩B)$

For condition (i),

$N(P∩B)=30+14−32=12$

So number of 12 people save paper and bottles both.

and for condition (ii),

$N(only B)=N(B)−N(P∩B)=14−12 = 2$

So number of 2 people save only bottles.