Quote:
Sipho maintains that every portion of the novel addresses at least one of the themes of time, fate, or magic, but that only 20% of the novel addresses all three themes and that 10% addresses magic only (among these three themes). Further details of his assessment are provided in the Venn diagram.
Anika agrees with much of Sipho's assessment. In particular, for any portion of the novel that, according to Sipho's assessment, addresses the theme of time, Anika agrees that the portion indeed addresses the theme of time. Likewise for the themes of fate and magic. However, contrary to Sipho's assessment, Anika maintains that every portion of the novel that addresses the theme of magic also addresses the theme of fate.
There are 2 ways to do this.
First is the quick and swift way:
The only change that we are asked to make is - every portion of the novel that addresses the theme of magic also addresses the theme of fate.
So, we need to move the 10% lying in Time & Magic and the 10% lying only in Magic into the Fate circle in such a way that all the circles' total values remain same. The values in Time and Machine will move into some part of the Fate circle such that the total of Time remains 70, and total of Fate remains 80. Notice that in doing so, all of Time's values will fall in some portion of Fate's. Similarly, values in Magic alone move into some part of Fate such that both totals remain same.
Basically, the Time circle's all values are lying in the shared area with Fate. And the Magic circle's all values are lying in the shared area with Fate. We don't need the exact split but we just need to know the total amount. And the total amount remains the same as per the question stem i.e. Time = 70%, Fate = 80%, Magic = 60%.
Thus:
100% of all of Time's values, lie in Fate too.
60% of value lies in Magic (as it was before, no change in totals).
Second way, the longer way:
We need to play around with numbers to reach the exact split.
Firstly, let's mark Time & Fate area as A, Time & Machine & Fate as B, and Magic & Fate as C.
All our values will be inside A, B, or C, such that T = 70, F = 80, M = 60.
Firstly, move 10 from T&M into A and move 10 from M only into C.
This makes A= 40, B = 30, C = 30. Thus, T = 70, M = 60 (upto here it is okay), but F = 100. Which is not possible.
If we want to reduce absolute value of F, one way to do is to increase B. Let's increase B by 10. A = 30, B = 40, C = 20, making F = 90.
Let's do it once again. A = 20, B = 50, C = 10. Now, T = 70, M = 60, F = 80. This works.
Question 1: ___ part of Time also lies in Fate.
Time = A + B = 70.
Fate = A + B + C = 80.
So, all of Time lies in Fate = 100%
Question 2: ___ is total value of Magic.
Magic = B + C = 50 + 10 = 60%