Qualification > Math

IGCSE NORMAL EXT. MATHS (FAST QUESTION!)

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saleemsamer:
hey guys i would like to ask q5 p4 m/j 09
and plz if u can show me the graph
and also q8 same paper, i would also like some explanatin plz (im weak in these topics  :-\)
thx in advance ;D

astarmathsandphysics:
When I get up

SGVaibhav:

--- Quote from: saleemsamer on March 10, 2010, 05:51:07 pm ---hey guys i would like to ask q5 p4 m/j 09
and plz if u can show me the graph
and also q8 same paper, i would also like some explanatin plz (im weak in these topics  :-\)
thx in advance ;D

--- End quote ---
why does it have to be 2009 may june paper ???
that is the only paper i dont want to see again....

astarmathsandphysics:
q5 attached

q8.p=1/20 q=19/20
both are faulty=1/20*1/20=1/400
only one is faulty
1st can be faulty, 2nd ok 1/20*19/20=19/400
or 1st can be ok, 2nd one faulty 19/20*1/20=19/400
19/400+19/400=19/200

saleemsamer:
THX astar but i would like the full q5 question plz im not understanding the second parts

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