Question

3 empty eds and 2 pen drives cost rs. 790. 2 empty cds and 3 pen drives cost rs 1110. What is the cost of one pen drive?

Answer 1

Answer:

Rs 291.66

Step-by-step explanation:

Answer 2

Answer:

350

Step-by-step explanation:

Take empty CD as x and pendrive as y

As per given data:

3x+2y=790.2   ->Equation 1

2x+3y=1110   ->Equation 2

From Equation 2,

2x=1110-3y

x=(1110-3y)/2

Substitute x in Equation 1

3((1110-3y)/2)+2y=790.2

3330-9y+4y=1580.4

5y=3330-1580.4

y=349.92

which can be rounded to 350//.