Question

18 pencils and 32 pens together cost Rs. 642 while 32 pencils and 18 pens cost Rs. 908. Find the cost of each pen and that of each pencil.

Answer 1

Step-by-step explanation:

Let the price of 1 pencil be Rs x and one pen be Rs y,

So acc to question,

18x+32y=642

32x+18y=908

Add both eqns,

50x+50y=1550

x+y=31 ----equation

Subtract the above 2 equation

14y-14x= -266

y-x= - 19

or x-y = 19

Now solve the equations,

x+y=31

x-y = 19

x=25, y=6

is your answer

Answer 2

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