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If 20 Hen for Rs 1, 1 pigeons for Rs 3 and 1 rooster for Rs 5 the how to buy 100 birds for Rs 100?

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If 20 Hen for Rs 1, 1 pigeons for Rs 3 and 1 rooster for Rs 5 the how to buy 100 birds for Rs 100?
posted Apr 10, 2020 by anonymous

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1 Answer

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80 hens+2 pigeons +18 roosters


birds = h+p+r=100 -----> (1)
money spent =1/20*h+3p+5r=100 -----> (2)
(2)*20-(1) => h+60p+100r-(h+p+r)=2000-100 => 99r+59p=1900 => r=18, p=2, so h=100-20=80
80 hens=Rs. 4 , 2 pigeons= Rs. 6, 18 roosters= Rs. 90

answer Apr 18, 2020 by Hanifa Mammadov



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Question: i have rs 100:
I need to buy this things under rs hundres, price for the birds are:
1rs- 1 crow
1rs- 4 sparrow
5rs - 1 parrot

How much and in which quantity birds i need to find to settle the 100 rupees i have?

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