Q36 of 66 Page 15

a box consists of 100 shirts of which 88 are good, 8 have minor defects and 4 have major defects. Ramesh, a shopkeeper will buy only those shirts which are good but ‘Kewal’ another shopkeeper will not buy shirts with major defects. A shirt is taken out of the box at random. What is the probability that

(i) Ramesh will buy the selected shirt?


(ii) ‘Kewal’ will buy the selected shirt? [CBSE 2016]

It is given to the question that,

Total number of shirts = 100


Total number of good shirts = 88


Shirts having minor defects = 8


Shirts having major defects = 4


(i) Probability (Ramesh buys a shirt) = Probability (Good shirts)




(ii) Probability (Kewal buys a shirt) = Probability (Shirts without major defect)


Total number of shirts without major defect = 96



=

More from this chapter

All 66 →
34

In a single throw of a pair of different dice, what is the probability of getting (i) a prime number on each dice? (ii) a total of 9 or 11?[CBSE 2016]

 35

Two different dice are thrown together. Find the probability of:

(i) getting a number greater than 3 on each die


(ii) getting a total of 6 or 7 of the numbers on two dice [CBSE 2016]

 37

Three different coins are tossed together. Find the probability of getting (i) exactly two heads (ii) at least two heads (ii) at least two tails.[CBSE 2016]

 38

A game consists of tossing a one-rupee coin 3 times and noting the outcome each time. Ramesh wins the game if all the tosses give the same result (i.e. three heads or three tails) and loses otherwise. Find the probability of Ramesh losing the game.[CBSE 2017]