PGT Maths Interview Questions and Answers for Freshers

Permutations and combinations are different mathematical concepts used to count and arrange objects.

• Permutations involve arranging objects in a specific order.

• Combinations involve selecting objects without considering the order.

• Permutations use factorial notation, while combinations use binomial coefficients.

• Permutations have a larger number of possibilities compared to combinations.

• Example of permutation: arranging letters in a word (e.g., 'cat' can be rearranged as 'act' or...read more

Teachers are preferable than online teaching because they provide personalized guidance, interactive learning experiences, and social interaction.

• Teachers provide personalized guidance and support to students, addressing their individual learning needs.

• Teachers create interactive learning experiences through hands-on activities, discussions, and group work.

• Teachers facilitate social interaction among students, promoting collaboration, teamwork, and communication skills.

• Teache...read more

0 factorial is defined as 1 because it represents the number of ways to arrange 0 objects.

• 0! is the product of all positive integers less than or equal to 0, which is 1.

• It is a convention in mathematics to define 0! as 1.

• 0! is used in various mathematical formulas and calculations.

• For example, in combinatorics, 0! represents the number of ways to arrange 0 objects.