Multiple choice

A grocer mixes two varieties of tea worth Rs. 120/kg and Rs. 125/kg in a ratio to produce a new variety worth Rs. 122/kg. What is the ratio in which the two varieties should be mixed?

  1. 2 : 5

  2. 1 : 3

  3. 3 : 2

  4. 4 : 4

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Using alligation: (125 - 122) / (122 - 120) = 3 / 2.

AI explanation

Using the rule of alligation, the ratio of the quantity of the cheaper tea to the dearer tea is (125 - 122) : (122 - 120). This calculates to 3 : 2. The two varieties should be mixed in a 3 : 2 ratio.