GRE-Math-Questions-to-Know-by-Test-Day-2nd-Edition_pag88

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Multiple-Choice Questions with One Correct Answer ‹ 79
 257. The ratio of zinc to copper in a certain alloy is 2 to 5. If 120 grams of 
copper are used, how many grams of zinc are needed to make this alloy?
 (A) 20
 (B) 48
 (C) 180
 (D) 200
 (E) 300
 258. Liam has been saving money to buy a trendy but expensive toy. It goes on 
sale at a local toy store for 15% less than the original price. Before Liam 
can buy the toy, however, the toy store raises the new price by 20%. If the 
15% off sale price was $119, the final price is what percent of the original 
price?
 (A) 95%
 (B) 98%
 (C) 102%
 (D) 105%
 (E) 120%
 259. A 50-foot rope is cut into two pieces so that the longer piece is 50% longer 
than the shorter piece. How many feet long is the longer piece?
 (A) 16 2
3
 
 (B) 20
 (C) 25
 (D) 30
 (E) 33 1
3
 
 260. A college student recently worked four weeks in a new summer job. In the 
fourth week, the student worked 20% more hours than in the third week. 
In the third week, the student worked 25% more hours than in the second 
week. In the second week, the student worked 40% more hours than in 
the first week. If the student worked 42 hours in the fourth week on the 
job, how many hours did the student work in the first week on the job?
 (A) 15
 (B) 20
 (C) 25
 (D) 30
 (E) 35
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