Simplification

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Simplification

by gmat740 » Tue Jun 16, 2009 6:08 am
Before being simplified, the instructions for computing income tax in Country R were to add 2 percent of one's annual income to the average (arithmetic mean) of 100 units of Country R's currency and 1 percent of one's annual income. Which of the following represents the simplified formula for computing the income tax, in Country R's currency, for a person in that country whose annual income is A?
A. 50+A/200
B. 50+3A/100
C. 50+A/40
D. 100+A/50
E. 100+3A/100
Source: — Data Sufficiency |

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IMO

by kc_raj » Tue Jun 16, 2009 5:49 pm
IMO C

0.02A+(100+0.01A)/2
=50+A/40

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by tohellandback » Tue Jun 16, 2009 8:06 pm
IMO C
explanation same as above
The powers of two are bloody impolite!!