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IGCSE Maths doubt(paper 4)

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@d!_†oX!©:
ok guys, here i come with yet another unusual question.... ;D ;D
seriously i haven't seen this anywhere else :o :o
(x:15-2x?7)?(x:5x-2>10-x)


i though maybe ":" sign implies ratio which is actually division
so by taking division(ex, x/(15-2x) i tried to solve it...but this is where i could reach ann dunno how to go about it now :-[ :-[
(x?7)?(5x²-47x+20>0)

PLEASE HELP GUYS!!!!!!

@d!_†oX!©:
hey i dunno y but some characters are not coming
lke the intersection character and the greater than or equal to character
anyways i'll tell u now:
(x:15-2x>=7)intersection(x:5x-2>10-x)

Ghost Of Highbury:
which past paper is this?

and yea..

(x:15-2x>=7)intersection(x:5x-2>10-x)

is the above the only q?

Ghost Of Highbury:
ok..heres it..

that ":" means "such that"...its dere in the book..read it.


k..so..
solve the inequalitites in both the sides to get

(15-2x>=7) n (5x-2>10-x)

solve them

(x<= 4) n (x>2)

now the left hand side values can be... 4,3,2,1,0 and so on

right hand side.. 3, 4, 5 and so on

the intersection is (3,4)

~~~~shreyapril~~~~:
dude it means x is a set such that 15-x>7
and another set is such that x 5x-2>10-x

hope you get it!!

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