问答题Four years ago, Jane was twice as old as Sam. Four years on from now, Sam will be 3/4 of Jane's age. How old is Jane now?

题目
问答题
Four years ago, Jane was twice as old as Sam. Four years on from now, Sam will be 3/4 of Jane's age. How old is Jane now?
相似考题

1.A general _______ is held in the United States every four years.A、selectionB、choiceC、electionD、choose

2.When did the children begin to speak English?A. When they are 5 years old. B. When they are 6 years old.C. When they are 7 years old. D. When they are 8 years old.

3.My first job ______for four years, my second for ten, my third for seven.A. tookB. lastedC. takeD. spent

4.Ten years ago the population of our vilage was () that of theirs.A、as twice as large asB、twice as large asC、twice as much asD、as twice much as

更多“Four years ago, Jane was twice as old as Sam. Four years on”相关问题

  • 第1题：

    In Britain the general election is normally held every four years.()

    此题为判断题(对，错)。


    正确答案:×

  • 第2题：

    28． How old is John's brother now when John is fifteen in the story?

    A．Ten years old．

    B． Fifteen years old

    C． Twenty years old

    D． Twenty-five years old．


    正确答案：D
    28.D【解析】当John 10岁时，他哥哥20岁，所以当 John 15岁时，他哥哥25岁。

  • 第3题：

    It can be learned from the passage that about four billion years ago ______.

    A. the earth was in molten state

    B. the earth surface temperature was above 100℃

    C. the earth surface temperature was below 100℃

    D. rain water could remain on the earth


    正确答案：B

    43．答案为B。根据第一段最后一句及第二段内容可知，雨水在地表温度降到水的沸点以下才能停在地表，由此可知大约在四十亿年前，地表温度应在沸点以上。

  • 第4题：

    His father is ________ than his mother.

    A.older four years

    B.as four years older

    C.four years older

    D.four years bigger


    参考答案：C

  • 第5题：

    My brother is four years older than me and someone I look______ to, even though he is shorter than me.

    A、up

    B、down

    C、below

    D、over


    参考答案：A

  • 第6题：

    The International Oil Pollution Prevention Certificate is valid for a period of______.

    A.one year from the date of issue

    B.five years from the date of issue

    C.three years from the date of issue

    D.four years from the date of issue


    正确答案：B

  • 第7题：

    What is learned about Kilmer Health Care Center?

    A. It is near a hospital.

    B. It opened four years ago.

    C. It is run with state funds.

    D. It has a highly-trained staff

    答案：B
    解析：

  • 第8题：

    问答题
    A man is 48 years old. He asks the other man how old he is. The other man answers: “I am twice as old as you were when I was as old as you are today.” How old is the other man?

    正确答案： 64
    解析： A现在48岁，B48岁时，年龄是A当时年龄的两倍，假设B年龄为X，由题意可知X=2[48-(X-48)]，由此得出X=64，即B现在64岁。

  • 第9题：

    问答题
    When David is twice as old as he is now he will be four times as old as his daughter Jane will be in five years time. If in 1990, four years ago, he was four times as old as his daughter, in what year was she born?

    正确答案： In 1983
    解析：
    （由题目可知，四年前为1990年，则今年为1994年。可以设David的女儿今年为X岁，David为Y岁，根据题目条件可以列出一个两元一次方程组：4(X+5)=2Y; 4(X-4)=Y-4。解方程组可得：X=11，Y=32，即Jane今年11岁，又知今年为1994年，则1994-11=1983，即她出生于1983年。）

  • 第10题：

    单选题
    Seven years ago, Scott was 3 times as old as Kathy was at that time. If Scott is now 5 years older than Kathy, how old is Scott ?
    A

    12.5

    B

    13

    C

    14

    D

    14.5


    正确答案： A
    解析：
    这是一道稍复杂的计算题，设Scott七年前的年龄为X，则有X+7-（1/3X+7）=5，由此可得X=7 1/2，再加上7即是Scott现在的年龄，因此该选14.5。

  • 第11题：

    单选题
    According to the passage, which of the following is TRUE?
    A

    Freedman and his colleagues hired 400,000 Americans to collect data.

    B

    About four hundred thousand Americans worked for Freedman's team full time for 13 years.

    C

    People who took part in Freedman's research are about 50 to 70 years old.

    D

    People who are 50 to 70 years old seldom drink coffee


    正确答案： B
    解析：

  • 第12题：

    单选题
    According to Project Mars One, humans could send four people to Mars within the next_____years.
    A

    seven

    B

    eight

    C

    ten

    D

    six


    正确答案： B
    解析：

  • 第13题：

    We haven't seen such a beautiful film().

    A、since four years

    B、for the past four years

    C、four years ago


    参考答案：B

  • 第14题：

    Medicine Directions

    Take two tablets with warm water, followed by one tablet every eight hours, as required. For maximum nighttime and early morning relief, take two tablets at bedtime. Do not exceed six tablets in twenty-four hours.

    For children six to twelve years old, give half the adult dosage. For children under six years old consult your doctor.

    Reduce dosage if nervousness, restlessness, or sleeplessness occurs.

    The label on this medicine bottle clearly warns not to take more than ______.

    A．twenty-four tablets a day

    B．eight tablets a day

    C．six tablets a day

    D．three tablets a day


    正确答案：C
    解析：本题的依据句为“Do not exceed six tablets in twenty-four hours”，意思为“24小时之内(一天)不能超过6片药”，与C选项意思相符。其他选项在文章中没有出处。

  • 第15题：

    There used to be an old city here, which was ()under the river about 2000 years ago.

    A、insulted

    B、insulated

    C、buried

    D、interrupted


    参考答案：B

  • 第16题：

    The approval period for a shipboard Oil Pollution Emergency Plan expires after ______.

    A.three years

    B.four years

    C.five years

    D.two years


    正确答案：C
    船舶油污应急计划的许可有效期在5年后期满。

  • 第17题：

    The International Oil Pollution Prevention Certificate is valid for a period of

    A.one year from the date of issue

    B.five years from the date of issue

    C.three years from the date of issue

    D.four years from the date of issue


    正确答案：B

  • 第18题：

    No one can expect to fully enjoy the adulthood privileges until he is ________.

    [A] eleven years old

    [B] sixteen years old

    [C] twenty-one years old

    [D] between twelve and twenty-one years old


    正确答案：C
    43.[C] 意为：21岁第二段后面部分从 It is during the nine years 到倒数第二句列举了青春期各阶段的权利。其中，第十句（at the age of twenty-one… public office）指出，21岁是开始享有完全成人权利的年龄。所以[C]为正确选项。
    11 岁不属于该部分介绍的范围；16岁时只能享有部分成人权利；12到 21岁期间是一个从儿童向成人转变的过程，个人享有权利逐渐增加，但若享有完全成人权利，需要达到 21岁。因此其他项排除。

  • 第19题：

    单选题
    Four years（）my ship called at this port.
    A

    before

    B

    after

    C

    ago

    D

    since


    正确答案： A
    解析： 暂无解析

  • 第20题：

    问答题
    Helen is twenty years old, and her age is four times as much as Mary’s. When Helen’s age is twice as much as Mary’s, how old is Helen then?

    正确答案： Thirty years old
    解析：
    海伦20岁了，他的年龄是玛丽年龄的4陪，由此可知玛丽的年龄是5岁。设ⅹ年后海伦的年龄是玛丽年龄的2倍，则20+ⅹ=2（5+ⅹ），得ⅹ=10。十年后玛丽的年龄为30岁。

  • 第21题：

    单选题
    The list of Coast Stations is republished（）in a trilingual.
    A

    every two years

    B

    every three years

    C

    every year

    D

    every four years


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    My brother is four years older than me and someone I look（）to, even though he is shorter than me
    A

    up

    B

    down

    C

    below

    D

    over


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    In New York，average _____ in one place is less than four years.
    A

    inhabitant

    B

    residence

    C

    accommodation

    D

    quarters


    正确答案： D
    解析：
    句意：在纽约，在一个地方的平均居住时间不足四年。residence和accommodation都有“住处”之意，但residence还有“居住”的意思；inhabitant意为“居民”；quarters意为“地区”。

相关内容