Question

the cost of 8 pens is 124 rupees whait is the cost of 15 pens exaplain​

Answer 1

Answer:

232.5

Step-by-step explanation:

1. 8pens cost -124
2. 8divided by 124-15.5
3. so one pen cost -15.5
4. so 15mulitepily by 15.5-232.5

Answer 2

Step-by-step explanation:

$cost \: of \: 8 \: pens \: = rs124 \\ cost \: of \: 1 \: pen \: = \: rs(124 \div 8) \\ cost \: of \: 15 \: pens \: = rs( \frac{124}{8} \times 15) \\ = rs(15.50 \times 15) \\ = rs232.50$

here you go

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