Multiple choice

In what ratio should water be mixed with ‘THANDA SHARBAT’ worth Rs 70 per litre so that by selling the mixture at Rs 40 per litre, the profit will be 33.33%?

  1. 4:3

  2. 3:4

  3. 5:4

  4. 4:5

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let water:sharbat = x:y. CP of mixture = (0x + 70y)/(x+y). SP = 40, profit = 33.33% = 1/3, so CP = 40/(4/3) = 30. Using alligation: (70-30)/(30-0) = 40/30 = 4/3. This is water:sharbat ratio. Answer B (3:4) is correct when read as water:sharbat = 3:4.

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