Question

cost of a dozen pen is 120 rupee and cost of 7 ball pen is 56 rupees. find the ratio of the cost of a pen to cost of ball pen . give answer in steps pls​

Answer 1

Step-by-step explanation:

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Answer 2

Given:

We have cost of a dozen pen is 120 rupee and cost of 7 ball pen is 56 rupees.

To Find:

We have to find ratio of the cost of a pen to cost of ball pen.

Step-by-step explanation:

• Since,cost of 12 pen is 120 rupees

          then cost of 1 pen will be given by

                      $\textrm{cost of 1 pen}=\frac{120}{12} =10$

• Similarly cost of 7 ball pen is 56.

          then cost of 1 ball pen is given by the formula

                     $\textrm{cost of 1 ball pen}=\frac{56}{7}=8$

• Thus of the cost of a pen to cost of ball pen is given by

                           $\frac{cost of pen}{ball pen} =\frac{10}{8}=\frac{5}{4}$

Hence, the ratio is 5:4