Question

it is known that a box of 600 bulbcontains 12 defective bulbone bulb taken out random what is probability of getting non defecting bulb in s. chand book. and is given 49/50 i didnt got it pz help tommorow is exam class9 probability

Answer 1

No. of bulbs=600
No. of defected bulbs=12
No. of non defecting bulb=600-12=588
Probability of getting non defecting bulb=588/600
=294/300
=147/150
=49/50