Question

The total cost of pencil and eraser is ₹10. The pencil costs ₹2 more than the eraser. Find their individual costs​

Answer 1

Step-by-step explanation:

The cost of a pencil = ₹ 1.05 and the cost of an eraser = ₹ 0.05

Step-by-step explanation:

Let the cost of a pencil = ₹ x

∴ The cost of an eraser = ₹ (x - 1)

To find, the cost of a pencil and the cost of an eraser = ?

According to question,

Total cost of a pencil and a eraser = ₹ 1.10

∴ x + x - 1) = 1.10

⇒ x + x - 1 = 1.10

⇒ 2x - 1 = 1.10

⇒ 2x = 1.10 + 1 = 2.10

⇒ x = \dfrac{2.10}{2}

2

2.10

= 1.05

∴ x - 1 = 1.05 - 1 = 0.05

Thus, the cost of a pencil = ₹ 1.05 and the cost of an eraser = ₹ 0.05

Answer 2

Answer:

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