Cost of a dozen pens is ₹ 180 and cost of 8 ball pens is ₹ 56. Find the ratio of the cost of a pen to the cost of a ball pen.

Question

Cost of a dozen pens is ₹ 180 and cost of 8 ball pens is ₹ 56. Find the ratio of the

cost of a pen to the cost of a ball pen. [1 ½ m]

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Bình An 5 years 2021-08-21T03:35:02+00:00 1 Answers 7 views 0

Answers ( )

  1. mocmien2
    0
    2021-08-21T03:36:06+00:00
    Reply

    Answer:

    Ratio of cost of a pen to cost of a ball pen is 15:7

    Step-by-step explanation:

    Given that:

    Cost of dozen pens = ₹180

    Unit rate = \frac{180}{12}

    Unit rate = ₹ 15 per pen

    Cost of 8 ball pens = ₹ 56

    Unit rate = \frac{56}{8}

    Unit rate = ₹7 per ball pen

    Ratio of cost of a pen to cost of a ball pen,

    15 : 7

    Hence,

    Ratio of cost of a pen to cost of a ball pen is 15:7

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