Qualification > Math
IGCSE MATHS Doubts
Shazizzzle:
Good Luck Guys! :)
Ghost Of Highbury:
--- Quote from: princess12 on May 18, 2010, 07:12:15 pm ---can any 1 explain me oct 2003 q 1 (b) all ??? ??? ??? ??? ??? ??? ???
reply me fast urgently plaese ??? ??? ??? ??? ??? ???
--- End quote ---
ans 1b) 144 adults, 96 children
bi) 1/3 * 96 = 32 children
bii) 37.5/100 * 144 = 54 adults
biii) 144-54 = 90
90 + 20 = 110 adults
biv) 96-32 = 64 children still left
110 adults already in..
110 + 64 = 174
200 - 174 = 26..
Vin:
--- Quote from: Dibss on May 18, 2010, 07:19:24 pm ---
Q- 24 students in a class asked whether they like football or basket ball.
iv) a student who likes football is selected at random. what is the probability that this student likes basketball?
i know it's a simple qs, but please answer since my answer was different from my teacher's and since i don't know if it's from a past paper i can't use a mark scheme to check :|
--- End quote ---
whoa insufficient data !!
Ghost Of Highbury:
--- Quote from: Dibss on May 18, 2010, 07:19:24 pm ---Q- 24 students in a class asked whether they like football or basket ball.
iv) a student who likes football is selected at random. what is the probability that this student likes basketball?
i know it's a simple qs, but please answer since my answer was different from my teacher's and since i don't know if it's from a past paper i can't use a mark scheme to check :|
--- End quote ---
Check the question, any other details given?? For e.g how many like only basket ball, or how many like only football etc??
Syed Kazim:
--- Quote from: Dibss on May 18, 2010, 07:19:24 pm ---Q- 24 students in a class asked whether they like football or basket ball.
iv) a student who likes football is selected at random. what is the probability that this student likes basketball?
i know it's a simple qs, but please answer since my answer was different from my teacher's and since i don't know if it's from a past paper i can't use a mark scheme to check :|
--- End quote ---
The question is from O/N/05. Question 4.
(14/24)*100=58.3%
The answer written above is incorrect. The correct answer is 12/19. Read this post to know more.
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