Alright, lets get started.
One report takes to file an average of = 45 minutes
Means 12 reports takes to file time = 12 * 45 = 540 minutes
12 reports filing total time = 540 minutes
We are asked to find time to file 75 % of them.
Which means 75 % of 540
= 540 * 75/100
= 540 * 0.75
= 405 minutes
We could convert it into hrs dividing with 60.
405 / 60 = 6.75 hrs
Means it will take 6.75 hrs to file 75% of them: Answer
Hope it will help :)
We know, Surface area of a Cube = 6a²
Here, Edge length(a) = 1.5
Substitute the value,
s = 6(1.5)²
s = 6 * 2.25
s = 13.5
In short, Your Answer would be Option D
Hope this helps!
1:5 56/280 is .2 which can be converted to 1/5 which is the same in ratio form.
