Question

the cost of 25 pens is rs 625.find the cost of 42 pens​

Answer 1

Answer:

25 pens =rs 625

1pen = 625/25=25

therefore 42 pen= 25*42

                           = 1050

so cost of 42 pens is 1050rs

Answer 2

As 625 is cost of 25 pens and 625 is the square of 25, each pen will cost ₹25

Cost of 42 pens => 42*25
=> ₹1050