Question

The cost of a pencil is 2 rupees more
than the cost of an eraser. If the cost
of 8 pencils and 10 erasers is Rs 52,
find the cost of each.​

Answer 1

Answer:

therefore the cost of one pencil is 4 and eraser is 2

Answer 2

Answer:

eraser's cost 2 rs and pencil cost 4 rs

Step-by-step explanation:

eraser= x pencil = y

y=x+2 ie x-y=-2.....(1)

10x+8y=52....(2)

x-y=-2..(multiples with10)

10x+8y=52

10x-10y=-20

10x+8y=52 ( subtract )

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-18y=-72

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y=pencil cost=72÷18=4

also y=x+2

4=x+2 so x=2

hope it helps