Question

Rinky paid rs 90 for 2 copies and a pencil. A copy costs 4 times as much as pencil. Amount paid by Rinky for a copy is?

Answer 1

Answer:

Let the cost of one pencil be x , and cost of one copy be 4x [4 times of a pencil]

• According to the Question :

⇒ 2 Copy + 1 Pencil = Rs. 90

⇒ 2(4x) + x = Rs. 90

⇒ 8x + x = Rs. 90

⇒ 9x = Rs. 90

⇒ x = Rs. 90 / 9

⇒ x = Rs. 10

• Amount paid for a copy :

⇢ Copy = 4x

⇢ Copy = 4(Rs. 10)

⇢ Copy = Rs. 40

∴ Amount paid by Rinky for a copy is Rs. 40