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 35% water? Choose one:
A) 1.3 kg
B) 1.5 kg
C) 1.7 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 65% (100-35).   Therefore 0.5 X 1.3 kgmount of flower-nectar = 0.65 X 1.3 kgmount of honey = 0.65 X 1 kg   Therefore amount of flower-nectar needed =   (0.65/0.51)kg=1.3 kgs   1.3 kgnswer : 1.3 kg
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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 35% water?