One pencil costs Rs. 2 and one fountain pen costs Rs. 15. What is the cost of `x` pencils and `y` fountain pens?

One ball pen costs Rsdot x and one fountain pen costs Rsy. Find the cost of y^(2) ball pens and x^(2) fountain pens.

If 15 pens cost Rs. 35, what is the cost of 39 pens?

One pencil costs Rs. 3 and one pen costs Rs. 25. The total cost of x pencils and y pens is

One ball pen costs R sdotx\ and one fountain pen costs R sdotydot Find the cost of y^2 ball pens and x^2 fountain pens.

One notebook costs Rs. 10 and one pencil costs Rs. 2. What is the cost of x notebooks and y pencils?

The cost of 1 pen is Rs. 16 and the cost of 1 pencil is Rs. 5. What is the total cost of x pens and y pencils.

9 pens and 5 pencils cost rs.154 and 13 pens and 7 pencils cost rs.222. What is the cost of each pen and pencil separately?

IF the cost of 15 pens is Rs 150 what is the cost of 7 pens ?

If the cost of 30 pencils is Rs. 240, what is the cost of 18 pencils?

3 pencils and 4 pens cost Rs. 270 while 4 pencils and 3 pens cost Rs. 150 . Find the combined cost of one pencil and one pen.