When processing flower-nectar into honey bees' extract, a considerable amount of water gets reduced. How much flower-nectar must be processed to yield 1kg of honey, if nectar contains 50% water, and the honey obtained from this nectar contains 30% water?
Choose the correct answer:
A) 1.2 kg B) 1.5 kg C) 1.4 kg D) 1.9 kg E) None of these
Explanation :   Flower-nectar contains 50% of non-water part.   In honey this non-water part constitutes 70% (100-30).   Therefore 0.5 X Amount of flower-nectar = 0.70 X Amount of honey = 0.70 X 1 kg   Therefore amount of flower-nectar needed =   (0.70/0.51)kg=1.4 kgs   Answer : 1.4 kg
<result>C</result>
When processing flower-nectar into honey bees' extract, a considerable amount of water gets reduced. How much flower-nectar must be processed to yield 1kg of honey, if nectar contains 50% water, and the honey obtained from this nectar contains 30% water?