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Math Help - Can you help with this maths Question?

  1. #1
    Junior Member
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    Jul 2008
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    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
    -------------------------------------------------------------------------------------------------------
    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
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  2. #2
    MHF Contributor kalagota's Avatar
    Joined
    Oct 2007
    From
    Taguig City, Philippines
    Posts
    1,026
    Quote Originally Posted by 0110kim View Post
    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 View Post
    -------------------------------------------------------------------------------------------------------
    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..
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