Question

aaj ka din number 2019 12th up box and mixed only one card is drawn from the box find the probability that the number on this card is number number less than a number which is perfect square​

Answer 1

Answer:

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Answer 2

Answer:

Step-by-step explanation:

Hi,

Given that cards are marked with number 2 to 151.

Let 'A' be the event drawing a prime number less than 75.

One card is drawn out of 150 cards in a box, so total possible ways of

drawing  a card = 150.

Since there 21 prime numbers which are less than 75, the prime number

could be drawn in 21 ways, so Number of favorable ways are 21

P(A) = 21/75 = 7/25

Hence Probability of drawing a prime number is 7/25.

Let 'B' the event of drawing an odd number

Since there are 75 odd numbers starting from 3 till 151, number of

favorable ways = 75

P(B) = 75/150

= 1/2

Hence, Probability of drawing an odd number  is 1/2.

Let 'C' be the event of drawing a perfect square

Since there  are 11 perfect squares starting from 4 = 2² till 144 = 12²,

Number of favorable events are 11

P(C) = 11/150

Hence, Probability of drawing a perfect square = 11/150