The following is a short problem i'm desperately trying to work out. Here is a table of figures:
Total Population is 20 million.
Now, the first question asks: What percentage of the population live in either Tokyo, Yoko or Hiro?
I can choose from four answers:
d. cannot say
The answer happens to be b. 11.8%
How on earth they reach that I have no idea. I have tried the following:
'Total population' - 'Total Other'
ie. (0.25+0.45+0.3) - (0.125+0.325+0.2) = 0.35
but apparently that is not correct and isn't in the list of answers.
The second question is: How many in the total population do not live in the city's above?
The answer is d.
I have tried 0.65 * 20,000,000 = 13m
But that is not correct according to the answer given.
Much needed help. Thanks!