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In a class of 75 students, 44 play cricket ,55 play foot ball each students plays at least one game. what is the probability that a random chosen student from this class plays only cricket.
a .44/75
b .4/15
c. 6/11
d. 11/25
Read Solution (Total 8)
-
- 44+55=99
99-75=24 play both
44-24=20 play only cricket
p=20/75=4/15 - 11 years agoHelpfull: Yes(57) No(0)
- b)-4/15
(cUf)=99 so (c intrsectn f)=24 => 44-24=20(only cricket)
p(c)=20/75 i.e. 4/15
- 11 years agoHelpfull: Yes(5) No(1)
- 4/15
total = cricket + football - common_in_both
75 = 44 + 55 - x
x = 24
cricket = 20
probability = 20/75 = 4/15 - 11 years agoHelpfull: Yes(3) No(0)
- 75-44=31 55-31=24
totally 24 students play cricket and football. only 20 are play the cricket.
20/75=4/15
ans is b.4/15 - 11 years agoHelpfull: Yes(3) No(0)
- 44-x + x + 55-x = 75,
Therefore,
x= 24.
So, No, of persons who play only cricked:- 44-x = 44-24=20.
So, prob= 20/75=4/15 Ans. - 11 years agoHelpfull: Yes(1) No(0)
- BY VENN DIAGRAM ANS IS 4/15= PLAYER PLAYED CRICET ONY =20
TOTAL 75.THEREFOR 20/75=4/15 ANS - 11 years agoHelpfull: Yes(0) No(0)
- 20 students play cricket.
Total probability that a student plays cricket is 20/75 = 4/15 Ans. - 11 years agoHelpfull: Yes(0) No(0)
- 20/75 ==>4/15
- 11 years agoHelpfull: Yes(0) No(0)
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