Subject: General Aptitude · Chapter: Alligation or Mixture · Exam: · Marks: · Difficulty:
20 litres of a mixture contains milk and water in the ratio 3 : 1. Then the amount of milk to be added to the mixture so as to have milk and water in ratio 4 : 1 is [SSC—CHSL (10+2) Exam, 2015]
(a)7 litres
(b)4 litres
(c)5 litres
(d)6 litres
Answer
Answer (as printed):
Explanation
In 20 litres of mixture. 3 Quantity of Milk ⇒ × 20 = 15 liters 4 1 Quantity of Water ⇒ × 20 = 5 liters 4 Let the quantity of milk added be x liters. According to the question, 15 + x 4 = 5 1 ⇒ 15 + x = 4 × 5 ⇒ x = 20 – 15 = 5 liters
Explanation as extracted from the printed page; notation may be imperfect.