Question

ram purchased 10 pens from the stationary shop the cost of each pen is rupees 7 then what is the cost of 10 pens​

Answer 1

Answer:

70 rs

Step-by-step explanation:

1 pen is of rs 7

he purchased 10 pens

so total cost will be 10×7=70

therefore the cost of 10 pens is rs 70

Answer 2

Step-by-step explanation:

Given total cost of 5 pens and 10 pencil = Rs 30

5 pens + 10 pencils = 30

pens + 2 pencils = 1

also given pen cost 3 more than a pencil

i.e, pen = 3 + pencil.

pen - pencil = 3

pens + 2 pencils = 6

_______________

-3 pencils = -3

pencils = 1

pen - 1 = 3

pen = 4

cost of pencils = 1 cost of pen = 4