Rohan and Shalu are playing with 5 cards as shown in the figure. What is the probability of Rohan picking a card without seeing, that has the number 2 on it?
(a) 2/5
(b) 1/5
(c) 3/5
(d) 4/5

Solution:

Given Rohan and Shalu are playing with 5 cards

Let the numbers from 1 to 5 are written on the 5 cards

Probability of Rohan picking up one card from 5 cards is given by 1/5

There is only two chances that 2 appears on the card, since there are 2 cards with number 2 written on them

Hence, required probability is 2/5

✦ Try This: Rohan and Shalu are playing with 5 cards as shown in the figure. What is the probability of Rohan picking a card without seeing, that has the number 5 on it? (a) 2/5, (b) 1/5, (c) 3/5, (d) 4/5

Given Rohan and Shalu are playing with 5 cards

Let the numbers from 1 to 5 are written on the 5 cards

Probability of Rohan picking up one card from 5 cards is given by ⅕

There is only one chance that 5 appears on the card

Hence, required probability is 1/5

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 5

NCERT Exemplar Class 8 Maths Chapter 2 Problem 19

Rohan and Shalu are playing with 5 cards as shown in the figure. What is the probability of Rohan picking a card without seeing, that has the number 2 on it? (a) 2/5, (b) 1/5, (c) 3/5, (d) 4/5

Summary:

Rohan and Shalu are playing with 5 cards as shown in the figure. The probability of Rohan picking a card without seeing, that has the number 2 on it is 2/5

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