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A survey shows that 76% of the Indians like Oranges, whereas 38% like both oranges and bananas. What percentage of Indians like Bananas?

Question

A survey shows that 76% of the Indians like Oranges, whereas 38% like both oranges and bananas. What percentage of Indians like Bananas?

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Solution

1. Break Down the Problem

To find the percentage of Indians who like bananas, we need to use the principle of inclusion-exclusion for the sets of people who like oranges and those who like bananas.

Let:

  • P(O) P(O) : Percentage of people who like oranges = 76%
  • P(O∩B) P(O \cap B) : Percentage of people who like both oranges and bananas = 38%
  • P(B) P(B) : Percentage of people who like bananas (which we want to find)

2. Relevant Concepts

Using the principle of inclusion-exclusion for probabilities, we have: P(O∪B)=P(O)+P(B)−P(O∩B) P(O \cup B) = P(O) + P(B) - P(O \cap B) where P(O∪B) P(O \cup B) is the percentage of people who like at least one of the fruits (oranges or bananas).

3. Analysis and Detail

From the problem, we know P(O)=76% P(O) = 76\% and P(O∩B)=38% P(O \cap B) = 38\% .

Assuming P(O∪B)=100% P(O \cup B) = 100\% (since we are only considering those who like at least one of the fruits): 100%=76%+P(B)−38% 100\% = 76\% + P(B) - 38\% Simplifying this equation will help us find P(B) P(B) .

4. Verify and Summarize

Combining like terms: 100%=76%+P(B)−38% 100\% = 76\% + P(B) - 38\% 100%=38%+P(B) 100\% = 38\% + P(B) P(B)=100%−38% P(B) = 100\% - 38\% P(B)=62% P(B) = 62\%

Final Answer

The percentage of Indians who like Bananas is 62% \boxed{62\%} .

This problem has been solved

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