in a Carton ,there are 15rectangular cards of which 7 are green and rest are white,18 pentagonal cards of which 3 are green and rest are white.one card is selected at random from the carton .find the probability that selected card is
(I) a rectangle
(ii) a Pentagon
(iii) a Pentagon of green colour
(iv) a rectangle of white colour
Answers
Given
In a Carton ,there are 15rectangular cards of which 7 are green and rest are white,18 pentagonal cards of which 3 are green and rest are white.one card is selected at random from the carton .find the probability that selected card is
Answer
(a) probability (rectangle ) = 15 / 33
(b)probability ( pentagon) = 18 / 33
(c)probability ( a pentagon of green colour ) = 3 / 33
(d)probability ( a rectangle of white colour ) = 8 / 33
number of rectangular cards = 15
number of pentagonal cards = 18
total number of cards = 33
rectangular green color cards= 7
rectangular white color cards= 15 - 7 = 8
pentagonal green color cards = 3
pentagonal white color cards = 18-3 = 15
probability = Number of out comes/ Total number of out comes
(a) probability (rectangle ) = 15 / 33
(b)probability ( pentagon) = 18 / 33
(c)probability ( a pentagon of green colour ) = 3 / 33
(d)probability ( a rectangle of white colour ) = 8 / 33
Step-by-step explanation:
I) Probability of the rectangule is 15/33
ii) Probability of the Pentagon is 18/33
iii) Probability of green colour Pentagon is 3/33
iv) Probability of white colour Pentagon is 8/33
Hope you like it