ssat数学对于小升初不在话下的中国考生来说,难点不是太集中的,但是在备考的时候难免会遇到一些比较让考生头疼的题,或是因为不会解题,或是因为英语词汇不精,不管如何吧,今天小编为大家汇总的是ssat数学难题大全。
1、What is the perimeter of a rectangle with side lengths of 8 and 3?
(一个长方形的边长为8 和3 ,它的周长是多少?)
A. 6 B. 11 C. 16 D. 22 E. 25
答案:D
解析:长方形周长=(8+3)*2=22
2、Two cars start from the same place two hours apart. The first car travels at 10 miles per hour and the second travels at 15 miles per hour. How many hours after the second car leaves does it take for the second car to catch up?
(两辆车从一个地方出发,一个先走两个小时。甲车每小时走十英里,乙车每小时走15英里。当乙车开始走的时候,它需要多久才可以追上甲车?)
A. 1 B. 2 C. 3 D. 4 E. 5
答案:D
解析:追击时间=路程差÷速度差,追击时间=10*2/(15-10)=20/5=4
3、What interest rate is necessary to get $1000 in interest over 2 years on a $10000 investment?
(投资10000美元,那么利率为多少的时候,在两年里才可以得到1000美元的利息?)
A. 4% B. 5% C. 6% D. 7% E. 8%
答案:B
解析:利息=本金×存期×利率,1000=1000*2*利率,利率=1000/1000*2=0.5=5%
4、The sum of 14 consecutive integers is 217. What is the sixth number in the series?
(14个连续整数的总和是217.那么这个序列中第六个数是几?)
A. 13 B. 14 C. 15 D. 16 E. 17
答案:B
解析:设第六个数为x,那么可列出算式(x-5)+(x-4)+(x-3)+(x-2)+(x-1)+x+(x+1)+(x+2)+(x+3)+(x+4)+(x+5)+(x+6)+(x+7)+(x+8)=217,抵消后得14x+21=217,x=14。
5、In a classroom of 35 students, 14 are male. What percent of the classroom is male?
(教室里有35个学生,14个是男生。 那么教室里男生的比例是多少?)
A. 14% B. 20% C. 30% D. 40% E. 50%
答案:D
解析:教室里男生的比例=14/35=0.4=40%
6、At Joes Steakhouse the hourly wage for a chef is 20% greater than that of a dishwasher, and the hourly wage of a dishwasher is half as much as the hourly wage of a manager. If a managers wage is $8.50 per hour, how much less than a manager does a chef earn each hour?
(在乔德牛排餐厅的厨师的小时工资比一个洗碗工多20%,洗碗工每小时的工资是经理人的每小时工资的一半。如果一个经理的工资是每小时8.50美元,那么厨师比经理每小时少赚多少钱?)
A. $5.95 B. $4.25 C. $5.10 D. $3.25 E. $3.40
答案:C
解析:经理工资每小时8.50美元,洗碗工工资每小时4.25美元,厨师工资=4.25+4.25*20%=5.1
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