Question

The ratio of prices of two books is 3:1 and prices of the the first book is rupees 75. if the prices of the first book was rupees 25 more full stop what would be the ratio of of their prices​

Answer 1

Answer:

a pencil, find the price of each item.

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ANSWER

Given total cost of 5 pens and 10 pencil = Rs 30

5 pens + 10 pencils = 30

pens + 2 pencils = 1

also given pen cost 3 more than a pencil

i.e, pen = 3 + pencil.

pen - pencil = 3

pens + 2 pencils = 6

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-3 pencils = -3

pencils = 1

pen - 1 = 3

pen = 4

cost of pencils = 1 cost of pen = 4

Answer 2

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Let's take the first book as 2x

And the other book as 5x

According to question:-

2x =Rs.32.50

=> x = Rs. 16.25

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Other book = 5x

=> 5x =Rs. 5 × 16.25

=> 5x = Rs.81.25

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Cost of other book = Rs.81.25