Rama spends Rs 97 to buy 4 two hundred page note books and 5 hundred page note books. Geetha spends Rs 101 to buy 5 two hundred page note book and 4 one hundred page note books. Which is the prices of two types of note books.
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Answer: Cost of Two Hundred page notebook is ₹13 While cost of hundred page notebook is ₹9.
Step-by-step explanation:
Let the cost of two hundred page note books = x
The cost of one hundred page note books= y
(1) 4x + 5y = 97
(2) 5x + 4y = 101
Multiply (1) with 5.
(3)20x+25y=485
Multiply (2) with 4
(4)20x+16y=404
Subtracting (4) from (3)
20x+25y=485
-20x-16y=-404
9y=81
y=81/9=9
y=9
Substitute y=9 in (1)
4x+5(9)=97
4x+45=97
4x=97-45
4x=52
x=52/4
x=13
Thus; Cost of Two Hundred page notebook is ₹13 While cost of hundred page notebook is ₹9.
Hope it helps:)
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