There are 40 students in Class X of a school of whom 25 are girls and 15 are boys. The class teacher has to select one student as a class representative. She writes the name of each student on a separate card, the cards being identical. Then she puts cards in a bag and stirs them thoroughly. She then draws one card from the bag. What is the probability that the name written on the card is the name of (i) a girl?(ii) a boy?

Question

Filo · Accepted Answer

Solution: Here, total number of students ,

n (S) = 40

Total number of girls,

n (G) = 25

Total number of boys,

n (B) = 15

(i)Probability a girl is selected,

P (G) = \frac{n ( G )}{n ( S )} = \frac{25}{40} = \frac{5}{8}

(ii)Probability a boy is selected,

P (B) = \frac{n ( B )}{n ( S )} = \frac{15}{40} = \frac{3}{8}

Question Text	There are 40 students in Class X of a school of whom 25 are girls and 15 are boys. The class teacher has to select one student as a class representative. She writes the name of each student on a separate card, the cards being identical. Then she puts cards in a bag and stirs them thoroughly. She then draws one card from the bag. What is the probability that the name written on the card is the name of (i) a girl?(ii) a boy?
Answer Type	Text solution:1
Upvotes	150

Text solutionVerified

Practice questions from similar books