If [p] denotes the greatest integer less than or equal to p, then $$\left[ \frac{-1}{2} \right] + \left[ \frac{4}{5} \right] + \left[ 2 \right]$$ is equal to:​

Correct option is B

Given:

[p] is a greatest integer

Formula used:

If x is a greatest integer such that:

n < x < n + 1 then:

=> [x] = n

Solution:

:-1 < (-1/4) < 0

So [-1/4] = -1

=> 4 < [$$4 \frac{2}{5}$$​] < 5

=> [$$4 \frac{2}{5}$$​] = 4

=> [2] = 2

Now the required sum $$[(\frac{-1}{2})] + [4 \frac{2}{5}] + [2]$$​:

= -1 + 4 + 2

= 5

Hence the correct answer is "5"