Percentage - Quantitative Aptitude (MCQ) questions for Q. 135

Q.  300 gm of sugar solution has 40% sugar. How much sugar should be added to make it 50% in the solution?
- Published on 15 Jun 15

a. 55 gm
b. 60 gm
c. 70 gm
d. 40 gm

ANSWER: 60 gm

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    Discussion

  • Shiva Rajeshwari    -Posted on 01 Sep 24
    Then 180+180 become 360 know we have only 300gm soln
    40% of 300=120gm sugar
    50% of 300 = 150 gm
    30 gm should be added
  • Kishan Yadav   -Posted on 04 Dec 21
    300 gram sugar has 40% sugar = 40% of 300 = 0.40 X 300 = 120 gram sugar && 180 water

    Previously, Water : Sugar = 180 : 120
    Now, Water : Sugar = 1:1 (50% sugar and 50% water) (balance between sugar and water)
    So, to balance the solution we need to add (180-120) = 60-gram sugar to be added

    So, Water : Sugar = 180 : (120 + 60) = 180:180 = 1:1

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