# Can you help with this maths Question?

• Jul 20th 2008, 08:00 PM
0110kim
Can you help with this maths Question?
PQRS is a square and points E and F are outside the square so that PQE and QRF are equilateral triangles. The size of EQF in degree, is
(A) 60
(B) 90
(C) 120
(D) 150
(E) 180
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Marbles of three differents colors are in a tin and two fifths of the marbles are red, one third are green and the remaining twelve are yellow. the number of marbles in the tin is:
A 30
B 45
C 54
D 60
E 90
• Jul 20th 2008, 08:08 PM
kalagota
Quote:

Originally Posted by 0110kim
PQRS is a square and points E and F are outside the square so that PQE and QRF are equilateral triangles. The size of EQF in degree, is
(A) 60
(B) 90
(C) 120
(D) 150
(E) 180

try drawing the figure..

Quote:

Originally Posted by 0110kim
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Marbles of three differents colors are in a tin and two fifths of the marbles are red, one third are green and the remaining twelve are yellow. the number of marbles in the tin is:
A 30
B 45
C 54
D 60
E 90

if $x$ is the number of marbles, then
$\frac{2}{5}$ of $x$ are red:
$\frac{1}{3}$ of $x$ are green:
$12$ are yellow:

therefore: $\frac{2}{5}x + \frac{1}{3}x + 12 = x$
solve for $x$..

EDIT: tell us what you got after you're done..