Reena’s mother said, to make idlis, you must take two parts of rice and one part urad dal. What percentage of such mixture would be rice and what percentage would be urad dal?

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66.6% rice and 33.3% urad dal

33.3% rice and 66.6% urad dal

25% rice and 75% urad dal

75% rice and 25% urad dal

answer is A.

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Detailed Solution

Concept- We will start by determining the portions of both urad dal and rice that are utilised in an idli. To obtain the needed percentage of both ingredients, multiply the portion by a factor of 100.
We are told to follow Reena's mother's recipe, which calls for using two parts of rice and one part of urad dal to produce idlis.
Consequently, the sum of the elements that are joining to produce an idli is 2+1=3.
Given that two of these components are covered with rice.
Therefore,

portions of rice are consumed. (Because a portion is the amount of that component used divided by the total amount of that ingredient).
In a similar vein, we utilised one portion of urad dal.
This suggests that

portions of urad dal are consumed.
We can calculate the proportion of both ingredients in the idlis by multiplying these portions by 100.
Consequently, the amount of rice used to make idlis is

Similar to that, urad dal makes up a percentage of idlis

Hence, the correct answer is option 1.

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