英语数学题,有点多的

题目

英语数学题,有点多的
1. Two numbers differ by 57. Their sum is 185. Find the numbers. Choices for the smaller number:54 64 74.
2.A bus went 318 km farther than a car. The car went one third as far as the bus. How far did each vehicle travel? Choices for the smaller number: 147 151 159
3.one number is four times another number. The larger number is also 87 more than the smaller number. Find the numbers. Choices for the smaller number: 29 30 33
4.A clown weights 60 lb more than a trapeze artist. The trapeze artist weighs two thids as much as the clown. How much does each weigh? choices for the weight of the trapeze artist : 110 120 125
5. The U.S. Senate has 100 memebers, all Democrats or Republicans. Recently there were 12 more Democrats than Republicans. How many Senators from each political party were there at that time? Choices for the number of Republicans: 38 42 44
6.The ninth grade class has 17 more girls than boys. there are 431 students in all. how many boys are there? how many girls are there? Choices for the number of boys: 191 202 207
7. Elena has one and a half times as much money as Ramon.Together they have 225. how much money does each have?
Choices for Ramom's amount;80 90 95
8. Western state college is 18 years older than southern state. western is also 2 and the half times as old as southern. how old is each? Choice for southern state's age:12 14 18

答案

解析
1.设较小数为x.
x+x+57=185
x=64.
2.设轿车行驶了x千米.
318+x=3x
x=159千米
轿车行驶了159千米,公车行驶了318+159=477千米.
3.设较小数为x.
4x=x+87
x=29.
4.60+x=3x/2
x=120
5.Let the number of Republicans be x.
x+x+12=100
x=44
6.设有x名男生
x+x+17=431
x=207名
有男生207名,女生431-207=224名.
7.设Ramom有x元.
x+3x/2=225
x=90元
8.设southern states college 有x年历史.
x+18=5x/2
x=12年.