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bottle

by nidhis.1408 » Tue Nov 22, 2011 1:39 pm
A bottle is 80% full. The liquid in the bottle consists of 60% guava juice and 40% pineapple juice. The remainder of the bottle is then filled with 70mL of rum. How much guava juice is in the bottle?
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by kanwar86 » Tue Nov 22, 2011 1:46 pm
nidhis.1408 wrote:A bottle is 80% full. The liquid in the bottle consists of 60% guava juice and 40% pineapple juice. The remainder of the bottle is then filled with 70mL of rum. How much guava juice is in the bottle?
IMO ans is 168 mL
Approach -1) 20% of vol of bottle = 70 mL
2) Find total volume of bottle in mL. 60% (guava juice) of 80% of the total volume of bottle is our answer.
Regards

Kanwar

"In case my post helped, do care to thank. Happy learning :)"
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by nidhis.1408 » Tue Nov 22, 2011 2:41 pm
@ kanwar Thanks a lot. 1st of all love your tag line "No matter how messed up your conditions look, eventually everything makes sense; Just stay focused".
your approach is simple.
The solution given in the book is something like-If the bottle is 80% full, then the 70ml of rum represents 20%. Use your knowledge of percentage to figure out that 80% if four times as big as 20%. Therefore, there must be 4*70(280)ml of the guava-pineapple mixture in the bottle. Use a percentage table to find the amount of guava juice.

part x 60
whole 280 100

16800=100x
x=168
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