Answer:
Step-by-step explanation:
Given
Box has top and bottom as square

let l ,b ,h be length, breadth and height of box
l=b because top and bottom as square
thus 

Total surface area




2km/hr is the answer to the question
<em> </em><em>so</em><em> </em><em>the</em><em> </em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>1</em><em>6</em><em>1</em><em>.</em><em>8</em><em>5</em><em>.</em><em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>.</em><em>:-D</em>
Answer:

Step-by-step explanation:
This is a question from conditional probability.
We are given:


And, we need to find P(A | B)
According to the formula of conditional probability:

Using the values, we get:

Thus, the probability of occurrence of event A given that event B has already occurred is 