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

A2 : 5

B4 : 4

C1 : 3

D3 : 2

Answer:

D. 3 : 2

Read Explanation:

Use the allegation method.

Cheaper tea = ₹120/kg
Costlier tea = ₹125/kg
Mean price = ₹122/kg

Difference:

  • (125 - 122 = 3)

  • (122 - 120 = 2)

So the ratio of ₹120 tea : ₹125 tea is

3:2

Required ratio = 3 : 2


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