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Answered

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16. How many liters of a 60% alcohol solution must be added to 60 liters of a 30% alcohol
solution to produce a 40% alcohol solution?
Quantity
Product
Percent
or
rate
Item 1
Item2
Combine
d Item

Sagot :

mhanifa

Answer:

  • 30 liters

Step-by-step explanation:

When you make a such solution the alcohol content remains same. Let the added volume is x.

Then we have:

  • x*60/100 + 60*30/100 = (x + 60)*40/100
  • 0.6x + 18 = 0.4x + 24
  • 0.6x - 0.4x = 24 - 18
  • 0.2x = 6
  • x = 6/0.2
  • x = 30

The added volume is 30 liters

ItzMeÆXO

Answer:

30 Liters

Step-by-step explanation:

A × 60% + 60 × 30% = (A + 60) × 40%

60%A + 18 = 40%A + 24

60%A - 40%A = 24 - 18

20%A = 6

A = 6 : 20%

A = 30

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