Sajjad1994 wrote:
Official Explanation
Pick the number 100 to represent the value of U.S. emissions in 1993. Then, in 1994, U.S. emissions were:
100+100*1.5% = 101.5
Next, the 1995 emissions were:
101.5+101.5*1.3% = 102.8195
The 1996 emissions were:
102.8195+102.8195*3.2% = 106.109724
So, rounded to two decimal places, emissions in 1996 were 106.11% of emissions in 1993. Note that it’s best not to round until the very end in a question like this.
The correct answer is (E).
You did much of the work already in Question I above when you calculated that, if emissions in 1993 were 100, then emissions in 1996 were 106.1097. Now, let the 1993 emissions be x percent of the 1996 emissions. Thus:
100=x%(106.1097)
\(x=\frac{100}{106.1097}(100)\)
\(x=94.24\)
The correct answer is (B).
Hey
chetan2u Sajjad1994, can u tell me why we r taking 1993 us emissions as 100.We could have done it like this when it would have asked the %age change between 1996 and 1993 becz then 19993 emissions would have got cancelled.but here, its asking whats %of 1993 emissions is 1996 emissions.So, here we need absolute value of 1993 emissions,right?Where am I going wrong?