The price of 2 books and 3 pens is Rs.340, but a book costs Rs.20 more than a pen. Find their prices.
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Answer:
book =80 rupees,pen=60 rupees
Step-by-step explanation:
2x+3y=340
x=20+y
2(20+y)+3y=340. let x is books and
40+2y+3y=340. y is pen
40+5y=340
5y=340-40
5y=300
y=300/5
y=60.
pen =60 rupees
book=20+60
book =80 rupees
my answer would help you
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