1. Subscriberinvigorate
    Only 1 F in Uckfield
    Buxted UK
    Joined
    27 Feb '02
    Moves
    212876
    18 Jul '05 23:04
    A bat and ball costs £1.10 - the bat costs £1 more than ball. How much does the ball cost?
  2. Standard memberXanthosNZ
    Cancerous Bus Crash
    p^2.sin(phi)
    Joined
    06 Sep '04
    Moves
    25076
    18 Jul '05 23:51
    x=bat
    y=ball

    Given:
    1. x + y = 1.1
    2. x - y = 1
    Rearranging 2:
    3. x = y + 1
    Substituting 3 into 1:
    y + 1 + y = 1.1
    Solving:
    2y = 0.1
    y = 0.05
  3. Standard memberBowmann
    Non-Subscriber
    RHP IQ
    Joined
    17 Mar '05
    Moves
    1345
    19 Jul '05 00:421 edit
    bat + ball = 110
    bat = ball + 100

    So, ball + ball + 100 = 110
    2 balls = 10
    ball = 5

    Ans. The ball costs 5 pence.


    Edit: Where did you buy them?
  4. Non-Sub Recs: 0
    Joined
    08 Apr '05
    Moves
    455
    19 Jul '05 08:361 edit
    Originally posted by Bowmann
    bat + ball = 110
    bat = ball + 100

    So, ball + ball + 100 = 110
    2 balls = 10
    ball = 5

    Ans. The ball costs 5 pence.


    Edit: Where did you buy them?
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