作业帮几道不甚理解的GMAT习题
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/04/20 17:32:20
几道不甚理解的GMAT习题
①142页66题
A family made a down payment of $75 and borrowed the balance on a set of encyclopedias that cost $400.The balance with interest was paid in 23 monthly payments of $16 each and a final payment of $9.The amount of interest paid was what percent of the amount borrowed?
正确答案是16%,但我算出来是13%（没有一个选项是这个答案）
②143页73题
Square RSTU shown above is rotated in a plane about its center in a clockwise direction the minimum number of degrees necessary for T to be in the position where S is now shown.The number of degrees through which RSTU is rotated is____
正确答案是270°.我看不懂“degrees necessary for T to be in the position where S is now shown”究竟是什么意思
③147页91题
In each production lot for a certain toy,25 percent of the toys are red and 75 percent of the toys are blue.Half the toys are size A and half are size B.If 10 out of a lot of 100 toys are red and size A,how many of the toys are blue and size
正确答案是35,我算出来是30.按题目所说的意思,红色型号A的玩具,其数量应该是蓝色型号B的玩具的3倍才对.
④147页93题
What is the least possible product of 4 different integers,each of which has a value between -5 and 10,inclusive?
正确答案-3600,我算出的是-5040.因为按题意所算出的最小乘积便是-5×10×9×8＝-3600,而题中问的是“最不可能”的答案.
①142页66题
A family made a down payment of $75 and borrowed the balance on a set of encyclopedias that cost $400.The balance with interest was paid in 23 monthly payments of $16 each and a final payment of $9.The amount of interest paid was what percent of the amount borrowed?
正确答案是16%,但我算出来是13%（没有一个选项是这个答案）
②143页73题
Square RSTU shown above is rotated in a plane about its center in a clockwise direction the minimum number of degrees necessary for T to be in the position where S is now shown.The number of degrees through which RSTU is rotated is____
正确答案是270°.我看不懂“degrees necessary for T to be in the position where S is now shown”究竟是什么意思
③147页91题
In each production lot for a certain toy,25 percent of the toys are red and 75 percent of the toys are blue.Half the toys are size A and half are size B.If 10 out of a lot of 100 toys are red and size A,how many of the toys are blue and size
正确答案是35,我算出来是30.按题目所说的意思,红色型号A的玩具,其数量应该是蓝色型号B的玩具的3倍才对.
④147页93题
What is the least possible product of 4 different integers,each of which has a value between -5 and 10,inclusive?
正确答案-3600,我算出的是-5040.因为按题意所算出的最小乘积便是-5×10×9×8＝-3600,而题中问的是“最不可能”的答案.
1.问还的利息占借钱总额的百分之多少?借的钱是325,借的钱加利息一共还了377,利息是52（这个你应该已经算出来了）,只是应该用52÷325=0.16,而不是377,因为他们借的是325.
2.我看不到图,只能猜.意思应该是说如果按照顺时针转,T转到S现在的位置,所需要的最少的度数.
3.根据题意,100个里面,红色25,蓝色75,A50,B50.因为红A是10个,那么对应红B=25-10=15（因为红色一共是25）,篮A=50-10=40（因为A一共是50）,所以篮B=100-10-15-40=35.
4.题意是最小的整数,而不是最不可能的整数.你算错了,正确答案是对的.
2.我看不到图,只能猜.意思应该是说如果按照顺时针转,T转到S现在的位置,所需要的最少的度数.
3.根据题意,100个里面,红色25,蓝色75,A50,B50.因为红A是10个,那么对应红B=25-10=15（因为红色一共是25）,篮A=50-10=40（因为A一共是50）,所以篮B=100-10-15-40=35.
4.题意是最小的整数,而不是最不可能的整数.你算错了,正确答案是对的.