Math, asked by nur2, 1 year ago

how many kg of salt at 42 paise per kg must a man mixed with 25 kg of salt at 24 paise per kg so that he may ,on selling the mixture at 40 paise per kg.gain 25% on the out lay ?

Answers

Answered by vikash191
5
let x kg be the amount of salt... 
cost price = 42x+24*25 
selling price = 40(x+25) 
profit = 25% 
so 
(SP - CP)/CP = 25% 

=> 40x + 1000 - 42x - 600 = .25 
on solving we get 
x = 20kg
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