Advertisements
Advertisements
Question
A child’s game has 8 triangles of which 3 are blue and rest are red and 10 squares of which 6 are blue and rest are red. One piece is lost at random. Find the probability that it is a triangle of red colour
Solution
Total number of figures
n(S) = 8 triangles + 10 squares = 18
P(triangle of red colour) = `5/18`
APPEARS IN
RELATED QUESTIONS
A die is thrown once. Find the probability of getting a number less than 5.
A die is thrown once. Find the probability of getting a number greater than 2.
A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears a perfect square number.
Cards bearing numbers 1, 3, 5, .... , 35 are kept in a bag. A card is drawn at random from the bag. Find the probability of getting a card bearing a number divisible by 3 and 5.
A box contains cards bearing numbers 6 to 70. If one card is drawn at random from the box, find the probability that it bears a number divisible by 5.
Tickets numbered 2, 3, 4, 5, ..., 100, 101 are placed in a box and mixed thoroughly. One ticket is drawn at random from the box. Find the probability that the number on the ticket is an even number.
The probability of getting 2 heads, when two coins are tossed, is
The probability of throwing a number greater than 2 with a fair die is
A child’s game has 8 triangles of which 3 are blue and rest are red and 10 squares of which 6 are blue and rest are red. One piece is lost at random. Find the probability that it is a square of blue colour
Two coins are tossed simultaneously. What is the probability of getting a head and a tail?