21930
Unique Id: 18592
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DIRECTIONS
for the question:
Solve the following question and mark the best possible option.
How many litres of pure alcohol is to be added to 40 litres of 20% alcohol solution to obtain a mixture which is 36% alcohol.
A)
10 litres
B)
12 liters
C)
15 liters
D)
5 liters
E)
None of these
A
Alcohol in 40 litres solution = 20% of 40 = 8 litres.
Now according to the given condition, let the alcohol added be A.
So, 8 + A = 36% of (40 + A)
Gives A = 10 liters
Question include in Following Tests :
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