SOLUTION: the cost of the pen is 3 times the cost of the pencil. of Rs 20 is added to both the sides. find out the money spent for buying both things. form a linear equation from this inform

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: the cost of the pen is 3 times the cost of the pencil. of Rs 20 is added to both the sides. find out the money spent for buying both things. form a linear equation from this inform      Log On


   

Question 934508: the cost of the pen is 3 times the cost of the pencil. of Rs 20 is added to both the sides. find out the money spent for buying both things. form a linear equation from this information.
Answer by JulietG(1812) About Me  (Show Source):
You can put this solution on YOUR website!
Let P be the pen and S be the pencil.
P = 3S
I'm not completely certain what you're asking, but let's assume that the cost of the pencil is Rs 20.
P = 3(Rs 20)
P = 60
If the cost of the pencil is 20, then the cost of the pen is 60. The cost to buy both is Rs 80.