Question

20 kg of baking flour was made by
combining 15 kg of bleached flour which
costs $7/kg with 5 kg of unbleached flour
which costs $3/kg. Find the cost per kg of
the mixture.

Answer 1

cost per kg of  the mixture is $6 per kg .

Step-by-step explanation:

Here we have , 20 kg of baking flour was made by  combining 15 kg of bleached flour which  costs $7/kg with 5 kg of unbleached flour  which costs $3/kg.We need to find Find the cost per kg of  the mixture. Let's find out:

20 kg of baking flour was made by  combining

• 15 kg of bleached flour which  costs $7/kg

Cost of bleached flour is :

⇒ $15(7)$

⇒ $\ 105$

• 5 kg of unbleached flour  which costs $3/kg

Cost of unbleached flour is :

⇒ $3(5)$

⇒ $\ 15$

Hence , total cost of mixture is $105+$15 = $120.

Now ,  cost per kg of  the mixture :

⇒ $\frac{120}{20}$

⇒ $\frac{20(6)}{20}$

⇒ $6$

Therefore , cost per kg of  the mixture is $6 per kg .