Question

The cost of 2 pencil, 4 pens and 8 erasers is Rs. 12 and the cost of 8 pens, 10 pencils and 4 erasers is Rs.

36. How much will 3 pencils, 3 pens and 3 erasers cost​

Answer 1

Answer:

write questions properly

Answer 2

Answer:

12

Step-by-step explanation:

Let say, cost of one pencil,pen and eraser are c, p and e respectively.

So,cost of 2 pencil,4 pens and 8 eraser would be= (2c+4p+8e).

so,(2c+4p+8e)=12. .(1)

Now,cost of 10 pencil,8 pens and 4 eraser would be=(10c+8p+4e).

so,(10c+8p+4e)=36.. .(2)

if we add equation (1)&(2):

12c + 12p + 12e (12+36).

or,12c + 12p + 12e 48

or,(c+p+e) = 4.

So,3(c +p+ e) = 3 x 4 = 12.

So, cost of 3 pencil ,3 pens and 3 erasers would

be 12 Rs.

12 is correct answer