Question

The cost of three pencils and two pens is Rs 43. If five pencils and a pen is Rs 45, find the cost of each pencil and each pen.
(Equation)​

Answer 1

Answer:

7 &10

Step-by-step explanation:

Let the cost of pencils and pens be x & y respectively.

i. Then, cost of three pencils+ two pens=3x+2y

Or, 3x+2y=43

Or, 2y=43-3x

Or, y=43-3x/2

ii. Cost of five pencils+ a pen=5x+y

Or, 5x+y=45

Or, y=45-5x

ACCORDING TO THE QUESTION

43-3x/2=45-5x

Or, 43-3x=90-10x

Or,10x-3x=90-43

Or, 7x=47

Or, approx. 7/- is the value of a pencil.

Then, value of pen= 45-7*5=45-35=10/-

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Answer 2

Refer The Attachment ⬆️

☞ Cost of each pencil is Rs.6.71

☞ Cost of each pen is Rs. 11.43

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