Of 10 mangoes, 4 are rotten.

When 2 mangoes are taken out together, one mango is found to be good.

The probability that the other mango is also good is:

a)1/3

b)5/9

c)5/13

d)8/15

Plz explain..

hey kartik

to get one good mango out of 2 taken from group of 10...

means ...

good mangoes =6 , so getting one good out of it is 6C1

and for one bad is 4C1

and total selection is 10C2

therefore the answer is = (6C1 x 4C1 )/ 10C2

                                 = 8/15

Options d) Answer