Maths-
General
Easy

Question

A man bought 4 cups of coffee and left a $7 tip. A woman bought 8 cups of coffee and only left a $2 tip. If they paid the same amount, how much was each cup of coffee?

The correct answer is: $1.25.


    • Hint:
    ○ Solve the equation.
    ○ Take terms with cofficient at one side and without cofficient at another side.
    • Step by step explanation:
    ○ Given:
    A man bought 4 cups of coffee and left a $7 tip.
    A woman bought 8 cups of coffee and only left a $2 tip.
    Amount paid by both is same.
    ○ Step 1:
    Let the price of 1 cup of coffee be x.
    So, in case of man,
    Total amount paid  = 4x + 7   { %7 is tip }
    In case of women,
    Total amount paid  = 8x + 2   { %2 is tip }
    ○ Step 2:
    ○ As amount paid by both of them is same.
    ∴ 4x + 7 = 8x + 2
    rightwards double arrow7 - 2 = 8x - 4x
    rightwards double arrow5 = 4x
    rightwards double arrowx = 5 over 4
    rightwards double arrowx = 1.25
    • Final Answer:
    Hence, each cup of coffee cost $1.25.

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