Question

one pencil costs Rs3 and one fountain pen costs Rs19 .what is the cost of x pencils and y fountain pen? Further, find the cost of 8 pencils and 4 fountain pens.

Answer 1

The cost of x pencils = Rs 3×x

The cost of y pencils = Rs 19×y

Cost or 8 pencils = 8×3 = Rs24

Cost of 4 fountain pens = 19×4 = Rs 76

How to found it ?

=> If you are having the cost of 1 , then multiply it with the quantity which is asked.


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Answer 2

$\huge \bf{hey}$


$\huge{ \mathfrak{here \: is \: answer}}$


given

cost of 1 pencil= ₹ 3


cost of 1 fountain pen= ₹19

to find -

cost of x pencil and y fountain pen

and

cost of 8 pencil and 4 fountain pen

according to question -


cost of x pencil = 3*x

= 3x

cost of y fountain pen= 19*y

= 19y

now

cost of 8 pencil

= 3*8

= ₹24

and

cost of. 4 fountain pen.

= 19*4

= ₹76
$\huge \boxed{ \boxed{hope \: it \: helps}}$


$\huge{ \mathbb{THANKS}}$