Question

3. The cost of a pen is rupees 20 and the cost of a pencil

is rupees 15 and cost of an eraser is rupees 2.50. Find

a) The ratio of the cost of a pan to that of a pencil.

b) The ratio of the cost of a pencil to that of an eraser.

c) The ratio of the cost of a pen to that of an eraser.

d) The ratio of the cost of a pen to that of a pencil to

that of an eraser.

e) The ratio of the cost of pen to the total cost of a pencil

and an eraser.​

Answer 1

Answer:

do it by yourself or u won't study

Answer 2

Answer:

a ) cost of pen : cost of pencil

20:15

4:3

b) cost of pencil : cost of eraser

15 : 2.50

3:5

c) Cost of pen : cost of eraser

20 : 2.50

4:5

d) cost of pen : cost of pencil : cost of eraser

20 : 15 : 2.50

4:3:5

e) cost of pen : total cost of pencil : total cost of eraser

same as d