Question

In how many ways can a selection of 6 out of 4 teachers and B students be done so as

to include at least two teachers?​

Answer 1

Step-by-step explanation:

Correct answer is option 'B'. Can you explain this answer?

Related Test: CA-CPT Question Paper June - 2016 (Session 2)

CA Foundation Question

By Aishwarya Aishwarya · Aug 08, 2020 ·CA Foundation

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Muskan Jain answered Aug 08, 2020

Number of ways to select 6 out of 4 teachers and 8 students such there are atleast 2 teachers

4C2 × 8C4 + 4C3 × 8C3 + 4C4 × 8C2

= 420 + 224 + 28

= 672