Question

2 pencils and 5 pens cost rupees 27, but
5 pencils and 2 pens cost rupee 15. Find the
cost of 5. pencils and 5 pens.
​

Answer 1

Answer:

answer for the given problem is given

Answer 2

Step-by-step explanation:

pencil=x pen=y

2x+5y=27

implies 10x+25y=135 let it be eqn 1

5x+2y=15

implies 10x+4y=30 let it be eqn 2

eqn 1-2 implies

21y=105

y=5

so 2x+5×5=27

2x=2 x=1

therefore 5x+5y=5×1 + 5×5

=30