The respective ratio of milk and water in the mixture is 4 : 3 respectively. If 6 Litres of water is added to… · ABC26GN3978
Subject: General Aptitude · Chapter: Alligation or Mixture
The respective ratio of milk and water in the mixture is 4 : 3 respectively. If 6 Litres of water is added to this mixture, the respective ratio of milk and water becomes 8 : 7. What is the quantity of milk in the original mixture? [IBPS—RRB Office Assistant (Online) Exam, 2015]
(a)36 litres
(b)84 litres
(c)48 litres
(d)None of these
Answer
No answer key was printed for this question.
Explanation
Let the quantity of milk and water in initial mixture be 4x and 3x liters. Quantity of water = 3x liters On adding 6 liters of water, we get 4x 8 = 3x + 6 7 ⇒ 28x = 24x + 48 ⇒ 28x – 24x = 48 ⇒ 4x = 48 48 ⇒ x= = 12 4 ∴ Required quantity of milk = 4x = 4 × 12 = 48 liters.
Explanation as extracted from the printed page; notation may be imperfect.