Question

59 pens and 47 pencils together cost rs 513 while 47 pens and 59 pencils together cost rs 441. Find the cost of the pens and that of the pencils

Answer 1

Step-by-step explanation:

and ur answer is here...plzzz give brain list

Answer 2

Step-by-step explanation:

Let the cost of pen = x

Let the cost of pencil = y

By the condition

59x + 47y = 513 ----( 1 )

47x + 59y = 441 ----(2)

equation ( 1 ) + equation (2) = x + y = 6 ------(3)

equation ( 1 ) - equation (2) = -x + y = 9 ------(4)

equation (3) + equation (4)

x+y = 6

-x+y = 9

-----------------

2y = 15 x+y = 6

y = 15/2 x+7.5 = 6

= 7.5 x = 1.5

The cost of pen = 1.5

The cost of pencil = 7.5