Question

300grams of sugar solution has 40%sugar in it. how much sugar should be added to make it 50% in the solution​

Answer 1

so let the amount of sugar added be "x"

now, 40% of 300 grams = $\frac{40}{100} \times 300$

                                        = 120 grams

so now according to the question

$120 + x = 150$

(since 50% of 300 is 150)

$x = 30$

now, 30 grams of sugar should be added

Answer 2

In 300 gram of solutions
Percentage of sugar -40%
•: Sugar= 300×40/100
=120 grams
Let X gram of sugar is added
Now according to the question
120+X/300+X. =1/2
=240+2X=300+X

=2X-X=300-240
=X=40 grams
answer
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