(Q10) Gopi buys a fish from a shop for his aquarium. The shopkeeper takes out one fish at random from a tank containing 5 male fish and 8 female fish (See figure). What is the probability that the fish taken out is a male fish?

Answer :

Number of male fish =

Number of female fish =

Total number of fish = fishes.

∴ Number of total outcomes in taking a fish at random from the aquarium =.

Number of male fish =

∴ Number of outcomes favourable to male fish = .

∴ The probability of taking a male fish =
No. of favourable outcomes
No. of total outcomes
=
=