Please have a look at ry1 .
a is certainly wrong according to the text.
Just replace the values given .
The (rounded) percent answer of the previous question : (rounded) 1450/86 .
At the beginning the value is $162 billion .
At the end of the first year it will be ($) 162 x ( 1 + 3/25) = 162 x 28/25 .
If you can not calculate the rest, look at ry1 .
total exports=20482 , total imports=15679 difference=-4803 so the fraction is -4803/15679 = ?
Calculate 48030/15679 and make a shift to left.
In 2007 it will be 32x111/100 .
In 2008 it will be 32x111x111/10000 .
In 2009 it will be 32x111x111x111/1000000 .
In 2010 it will be 32x111x111x111x111/100000000 .
This time we have 5 years in between and should calculate 56x11x11x11x11x11/10x10x10x10x10 .
Find first the mean net income/total assets ratio for the firms given, i.e. mean of 15/180 + 30/300 + ... .
(sum of total incomes)/(sum of total assets) = 5/73 = 0.068 .
Unit fractions are different ... .
After the reductions the question reduces to the calculation of 1/3 .
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