1.

the price of 3 notebooks and 2 textbooks rupees 135 but a notebook cost rupees 5 more than the notebook find the cost of both the notebook and test book

Answer»

Hey!!!

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Let the cost of 1 NOTEBOOK be Rs.X and 1 textbook be Rs.y.

Then ATQ,

=> 3x + 2y = 135------(1)

Also

=> x - 5 = y

=> (x - y = 5)2-------(2)

ADD (1) and (2).

=> 3x + 2y + 2x - 2y = 135 + 10

=> 5x = 145

Thus x = 29

Thus y = 24

Thus the cost of 1 notebook is Rs.29 and 1 textbook is Rs.24

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Hope this helps you



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