A recent survey polled 2,500 people about their reading habits. The results are as follows:How many people surveyed had read books in the last month?
Answer(s): E
13% had not read books; therefore, 87% had. 87% is equal to 0.87. 0.872,500 = 2175 people.
A certain university has 36,042 total students. Of these students, 16,534 are male. Approximately how many more women attend the university than men?
Answer(s): C
To estimate quickly, the numbers can be rounded to 36,000 and 16,500. 36,000 students minus 16,500 male students is equal to 19,500 female students. 19,500 women minus 16,500 men is equal to 3,000 more women than men.
A rectangular tumbling mat for a gym class is 5 feet wide and 7 feet long.What is the area of the mat?
Answer(s): D
The area is width times length, in this case, 5 times 7, or 35 square feet.
A machine on a production line produces parts that are not acceptable by company standards 4% of the time. If the machine produces 500 parts, how many will be defective?
4% is equal to 0.04. 500 x0.04 = 20.
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