单选题If A is 125% of B, then B is what percent of A?A 60%B 75%C 80%D 88%E 90%

题目
单选题
If A is 125% of B, then B is what percent of A?
A

60%

B

75%

C

80%

D

88%

E

90%

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更多“单选题If A is 125% of B, then B is what percent of A?A 60%B 75%C 80%D 88%E 90%”相关问题

  • 第1题：

    小儿的血压一般为

    A、40～50/30～40mmHg

    B、60～75/40～50mmHg

    C、60～75/50～60mmHg

    D、75～90/60～80mmHg

    E、80～100/60～90mmHg


    参考答案：B

  • 第2题：

    防爬角钢的最小尺寸为()㎜。

    A.125×75×10

    B.125×80×10

    C.125×75×12

    D.125×80×12


    参考答案：D

  • 第3题：

    What is the default maximum reservable bandwidth （percentage） by any single flow on an interface after enabling RSVP？（）

    • A、75 percent
    • B、60 percent
    • C、56 percent
    • D、50 percent
    • E、25 percent

    正确答案:A

  • 第4题：

    当柴油机转速为1000r/min时，机油温度为（）。

    • A、80—88℃
    • B、75—80℃
    • C、80—90℃
    • D、88—98℃

    正确答案:A

  • 第5题：

    红斑狼疮表现关节症状，其比例为：（）

    • A、≥90％
    • B、90％±
    • C、80％
    • D、≥75％
    • E、≤60％

    正确答案:A

  • 第6题：

    单选题
    The table below summarizes the results of a survey in which families reported the number of television sets they have in their homes. What percent of the families surveyed have two or fewer television sets?
    A

    75%

    B

    68%

    C

    60%

    D

    40%

    E

    33%


    正确答案： C
    解析：
    According to the table, 32 + 80 + 160 + 83 + 45 or 400 families were surveyed. Since the number of families with two or fewer television sets is 32 + 80 + 160 or 272, the percent of families surveyed with two or fewer television sets is (272/400)×100% or 68%.

  • 第7题：

    单选题
    官兵六熟悉成绩评定分别为优秀（）、良好（）、及格（）。
    A

    90、75  60

    B

    90、70、60

    C

    90、80、60

    D

    85、70、60


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    正常人血液中水的含量为
    A

    70c%～75％

    B

    73％～80％

    C

    81％~88％

    D

    90％~93％

    E

    93％～95％


    正确答案： B
    解析： 暂无解析

  • 第9题：

    单选题
    The percent increase in the number of students enrolled in advanced mathematics courses from 1993 to 1994 exceeded the percent increase from 1995 to 1996 by approximately what percent?
    A

    200

    B

    133

    C

    75

    D

    67

    E

    8


    正确答案： B
    解析：
    From data in the graph: Percent increase from 1993 to 1994= (700 - 400)/400 ×100%= 300/400 ×100%= 75%.
    Percent increase from 1995 to 1996 = (500 - 300)/300 ×100%= 200/300 ×100%= 66.7%. Percent increase from 1993 to 1994 exceeds the percent increase from 1995 to 1996 by 75%-66.7% or, approximately, 8%.

  • 第10题：

    单选题
    If A is 125% of B, then B is what percent of A?
    A

    60%

    B

    75%

    C

    80%

    D

    88%

    E

    90%


    正确答案： E
    解析：
    If A is 125% of B, then A = 1.25×B. Since A = 1.25B. B = 1/1.25 × A = 0.80 × A. So B is 80% of A.

  • 第11题：

    单选题
    A number a increased by 20% of a results in a number b. When b is decreased by 33(1/3)% of b, the result is c. The number c is what percent of a?
    A

    40%

    B

    60%

    C

    80%

    D

    120%

    E

    150%


    正确答案： C
    解析：
    If a increased by 20% of a results in b, then a + (20% of a) = b, a +0.2a =b, 1.2a = b. When b is decreased by 33(1/3)% of b, the result is c, so b - (1/3)b = (2/3)b = c. Since c = (2/3)b = (2/3)(1.2a) = 0.80a, then c is 80% of a.

  • 第12题：

    单选题
    红斑狼疮表现关节症状，其比例为（）
    A

    ≥90％

    B

    90％±

    C

    80％

    D

    ≥75％

    E

    ≤60％


    正确答案： E
    解析： 暂无解析

  • 第13题：

    PCR实验变性的温度是( )

    A、90℃

    B、94℃

    C、80℃

    D、75℃

    E、60℃


    参考答案：B

  • 第14题：

    注汽锅炉的热效率一般在（）之间。

    • A、70%-80%
    • B、80%-88%
    • C、90%-99%
    • D、70%-75%

    正确答案:B

  • 第15题：

    职业卫生检测中，固体吸附剂的解吸效率范围最好在（）

    • A、60%～75%
    • B、70%～80%
    • C、75%～85%
    • D、75%～90%
    • E、80%～95%

    正确答案:D

  • 第16题：

    女性骨盆的耻骨下角为（）

    • A、80°~100°
    • B、60°~95°
    • C、70°~75°
    • D、90°~100°
    • E、75°~95°

    正确答案:D

  • 第17题：

    单选题
    What percentage of students is staying away from school in Zimbabwe in 2008? ? ?
    A

    85 percent.

    B

    20 percent.

    C

    80 percent.


    正确答案： C
    解析： 由新闻第一句可知，2008年津巴布韦的就学率降到了20%，也就是说，有80%的学生辍学在家。
    【录音原文】
    　　The UN Children’s Fund reports school attendance in Zimbabwe has rapidly declined from more than 85 percent in 2007 to just 20 percent by the third term of 2008. The UNICEF Representative in Zimbabwe, Roeland Monasch, says the cholera epidemic and the collapse of basic services are adversely affecting the population. He says children are staying away from school because they have to help their parents look for food or find ways to earn money to help support their families.
    　　Q: What percentage of students is staying away from school in Zimbabwe in 2008?

  • 第18题：

    单选题
    If one pair of opposite sides of a square are increased in length by 20% and the other pair of sides are increased in length by 50%, by what percent is the area of the rectangle that results greater than the area of the original square?
    A

    10%

    B

    50%

    C

    70%

    D

    75%

    E

    80%


    正确答案： E
    解析：
    Suppose the length of a side of the original square is 10; then the area of that square is 10×10 or 100. Since one pair of opposite sides of the square are increased in length by 20%, and 20% of 10 is 2, the length of that pair of opposite sides of the new rectangle is 10+2 or 12. Since the other pair of sides are increased in length by 50%, and 50% of 10 is 5, the length of the other pair of opposite sides of the new rectangle is 10+5 or 15. The area of the new rectangle formed is 12×15 or 180, which is 80% greater than 100, the area of the original square.

  • 第19题：

    单选题
    Jerry, Will, and AI all work at the same company. Jerry earns 80% of Will's salary, and Will earns 75% of Al's salary. What percent of Al's salary is equal to Jerry's salary?
    A

    80%

    B

    75%

    C

    70%

    D

    65%

    E

    60%


    正确答案： B
    解析：
    J = 0.8W and W = 0.75A. Substitute 0. 75A for W. J = 0.8 × 0.75A = 0.6A. Therefore, 60% of Al's salary is equal to Jerry's salary.

  • 第20题：

    单选题
    What is the default maximum reservable bandwidth （percentage） by any single flow on an interface after enabling RSVP？（）
    A

    75 percent

    B

    60 percent

    C

    56 percent

    D

    50 percent

    E

    25 percent


    正确答案： D
    解析： 暂无解析

  • 第21题：

    单选题
    ZG80-1500型电机车补可熔丝容量为（）A。
    A

    60

    B

    70

    C

    75

    D

    88


    正确答案： B
    解析： 暂无解析

  • 第22题：

    单选题
    静液压系统工作油一般应在（）℃范围内。
    A

    15~60

    B

    55~75

    C

    60~80

    D

    40~88


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    职业卫生检测中，固体吸附剂的解吸效率范围最好在（）
    A

    60%～75%

    B

    70%～80%

    C

    75%～85%

    D

    75%～90%

    E

    80%～95%


    正确答案： C
    解析： 我国相关规定要求，固体吸附剂的解吸效率最好在95%以上，不得低于75%。

  • 第24题：

    单选题
    当柴油机转速为1000r/min时，机油温度为（）。
    A

    80—88℃

    B

    75—80℃

    C

    80—90℃

    D

    88—98℃


    正确答案： A
    解析： 暂无解析

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