Question

In a school, there are four sections of 40 students each, in XI standard. In
how many ways can a set of 4 student representatives be chosen, one from
each section?
unul consonant and a digithe chosen to the​

Answer 1

Answer:

We can choose 1 student from 40 students in ⁴°C₁ ways.

So a set of 4 students can be chosen in = ⁴°C₁×⁴°C₁×⁴°C₁×⁴°C₁ ways

⁴°C₁ = 40!/(1!×39!) = 40

So total number of ways = 40×40×40×40 = 2560000

therefore, total no.of ways=2560000