Question

6. The cost of 3 pens and a notebook is 72. If the coste
the notebook is 18, find the cost of one pen.
(ii) 2 su
(iii) Ten
(iv) The​

Answer 1

Let the cost of 1 pen be x

If the cost of one notebook is 18 then,

3x+18=72

3x=72-18

3x=54

x=54÷3

x=18

cost of 1 pen is 18

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