Question

if the cost of 5 pens is ruppes 40 , find the cost of 8 pens​

Answer 1

Answer:

$cost \: of \: one \: pen = \frac{40}{5}$

$8$

$cost \: of \: 8 \: pen = 8 \times 8$

$= 64rs$

Answer 2

Answer:

Cost of 5 pens = rs.40

Cost of 1 pen = 40/5 = rs.8

Cost of 8 pens = 8×8 = rs.64