Math, asked by hiiii38, 1 year ago

How may kilograms of butter worth ₹140 per kg must be mixed with 20kg of butter worth ₹150 per kg to produce a mixture worth ₹144 per kg?

Answers

Answered by kulsoom200904
26

let x kg of butter @Rs140/kg be added to 20kg of butter @Rs 150/kg

total price = 140×x + 150×20 = 140x + 3000


after mixing, (x+20) kg of butter is produced @Rs144/kg 

144×(x+20) = 140x+3000

⇒144x + 144×20 = 140x + 3000

⇒ 144x - 140x = 3000 - 144×20

⇒ 4x = 3000-2880 = 120

⇒ x = 120/4 = 30kg


So required answer is 30kg


pls mark as branliest pls



kulsoom200904: thx
hiiii38: no i should say thx
hiiii38: thnq
kulsoom200904: ok
kulsoom200904: :D
kulsoom200904: hi
Similar questions