Question

There are 10 balls in a bag, which are yellow, blue or red in colour. Out of
these, 5 are NOT blue and 7 are NOT red. How many yellow balls are
there in the bag?
2
3
4
8​

Answer 1

Answer:

3 yello balls are in the bag

Answer 2

2

5 are not blue so 10-5=5 blueballs

7 are not red so 10-7 =3 red balls

balance 2 balls yellow