What is 35% of 4/13 of 585? Pick
A) 52 B) 63 C) 74 D) 85 E) 96
This problem can be solved easily if we just use approximation: 35% is a little over 1/3, while 4/13 is a little less than 4/12, which is 1/3. Thus, the answer is about 1/3 of 1/3 of 585, or 1/9 of 585. Since the first 1/3 is a slight underestimate and the second 1/3 is a slight overestimate, the errors will partially cancel each other out. Our estimate will be relatively accurate.   The number 585 is between 540 and 630, so (1/9)*585 will be about 65.   Keeping track not only of your current estimate, but also of the degree to which you have overestimated or underestimated , can help you pinpoint the correct answer more confidently.   The closest answer is 63, so this is the answer to choose.   The answer is 63.
<result>B</result>
What is 35% of 4/13 of 585?