SOLUTION: When a barrel is 30% empty it contains 30 litres more than when it is 30% full. How many litres does the barrel hold when full?
A) 60 B) 75 C) 90 D) 100 E) 120
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-> SOLUTION: When a barrel is 30% empty it contains 30 litres more than when it is 30% full. How many litres does the barrel hold when full?
A) 60 B) 75 C) 90 D) 100 E) 120
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Question 300747: When a barrel is 30% empty it contains 30 litres more than when it is 30% full. How many litres does the barrel hold when full?
A) 60 B) 75 C) 90 D) 100 E) 120 Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website!
When it is 30 % empty it means it is 70% full
0.7x=0.3x+30
0.7x-0.3x=30
0.4x=30
x=30/0.4
x=75 litres
A glass half empty is half full !!!!!
Ananth
