Question

5 pencils and 6 erasers cost is equal to 33 rupees and the cost a pencil and an eraser is 6 rupees, find out the cost of eraser.
1. 1
2. 2
3. 3
4. 4

Answer 1

Correct Answer - Option 3 : 3

Given :

The cost of 5 pencils and 6 erasers is equal to 33 rupees 

The cost of a pencil and an eraser is equal to 6 rupees 

Calculations :

Let the cost of a pencil be P 

Let the cost of an eraser be E 

According to the question 

5P + 6E = 33      ....(1)

P + E = 6      ....(2)

Multiply equation (2) by 5 and solving equation (1) and (2)

P = 3 and E = 3 

∴ The cost of the eraser is 3 rupees