Question

420grams of sugar solution has 40percentage sugar in it. How much more sugar needs to be added in grams such that the resulting solutions has 65 percentage sugar

Answer 1

100 gm

explaination

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• Grams of sugar in 400 gms solution with 40% concentration = 400 * 40/100 grams = 160 grams

• Grams of sugar in 400 gms solution with 60% concentration = 400 * 65/100 grams = 260 grams

Therefore sugar that needs to be added = 260-160 = 100 grams

Answer 2

Answer:

300 gm

Step-by-step explanation:

Let x gm more sugar needs to be added so  that the resulting solutions has 65% sugar

Present sugar=40% of 420 gm

40/100*(420)=4*42=168 gm

After adding x gm sugar

total solution=420 +x gm

sugar=168 +x gm

As per given

New sugar =65%

Or (168+x)*100 / (420+x)=65

(168+x)*100 =(420+x)*65

16800+100x=27300+65x

100x-65x=27300-16800

35x=10500 gm

x=10500/35=300 gm