Reasoning Class 5 Possible Combinations

Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.

Anjali has 5 different fruits. She wants to take exactly 2 fruits to school in her lunchbox. How many different pairs of fruits can she choose?

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A 10
B 20
C 25
D 15

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Answer: A. 10

Simple Explanation: If she picks Apple and Banana, it’s the same as Banana and Apple. The pairs are: (1,2), (1,3), (1,4), (1,5), (2,3), (2,4), (2,5), (3,4), (3,5), and (4,5). Total = 10.

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Anjali has 5 different fruits. She wants to take exactly 2 fruits to school in her lunchbox. How many different pairs of fruits can she choose?

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