Question

१. पाँच बच्चे एक प्रतियोगिता में हिस्सा लेते हैं। प्रत्येक को एक-ठूसरे के
साथ खेलना है। उन्हें कितने खेल अवश्य खेलने चाहिए।
(a)30
(b)8
(c) 10
(d) 24​

Answer 1

Step-by-step explanation:

10 c wala correct answer hai

Answer 2

(c) 10

• Combinations are ways to choose elements from a collection in mathematics where the order of the selection is irrelevant. Let's say we have a trio of numbers: P, Q, and R. Then, combination determines how many ways we can choose two numbers from each group. It is easy to count the number of combinations in smaller cases, but the likelihood of a set of combinations is also higher in cases with many groups of components or sets.
• The definition of the combination is "An arrangement of objects where the order of the objects is irrelevant." Combining these two words indicates "Selection of things," where the order of the items is irrelevant. Combinations are a subset of permutations in which the order of the choices is ignored. As a result, the number of permutations always exceeds the number of combinations. The fundamental distinction between permutation and combination is as follows.

Here, according to the given information, we have,

Five children take part in a competition. Each of them has to play along with each child.

Hence, the number of games will be $5C_{2} = 10$.

Hence, option c is correct.

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