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Introduction to Graphs Test - 10

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Introduction to Graphs Test - 10
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  • Question 1
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    Directions For Questions

    The frequency curve shows the number of students ages 1111 through 1717 in Chennai city that have mobile phones. Refer to the frequency curve below to answer each question.

    ...view full instructions

    What was the least number of mobile phones at any age?

    Solution
    1010 was the least number of mobile phones at any age.
  • Question 2
    1 / -0

    Directions For Questions

    The frequency curve shows temperatures over 1111 year in Bangalore. Use the graph to answer the questions below.
    Which year had the lowest temperature?

    ...view full instructions

    What is the range of temperatures in Bangalore over 1111 years?

    Solution
    Range of temperature = highest temperature - lowest temperature
    =4512== 45 - 12 = 33oC33^{o}C
    So, the range of temperatures in Bangalore over 1111 years is 33oC33^{o}C.
  • Question 3
    1 / -0

    Directions For Questions

    The frequency curve shows the number of students ages 1111 through 1717 in Chennai city that have mobile phones. Refer to the frequency curve below to answer each question.

    ...view full instructions

    In which age students do have the least number of mobile phones?

    Solution
    1212 years old students have the least number of mobile phones.
  • Question 4
    1 / -0

    Directions For Questions

    The graph shows the distribution of negative and even numbers in three sets of numbers.

    ...view full instructions

    How many sets had more even than negative numbers?

    Solution
    Set A and Set C have more even numbers. Hence the answer is option C.
  • Question 5
    1 / -0

    Directions For Questions

    The frequency curve shows the number of students ages 1111 through 1717 in Chennai city that have mobile phones. Refer to the frequency curve below to answer each question.

    ...view full instructions

    About how many mobile phones do 141214\dfrac{1}{2} year old have?

    Solution
    On looking the graph, we can say 141214\dfrac{1}{2} year old have 40 mobile phones.
  • Question 6
    1 / -0
    The annual maintenance cost of a machine in a factory over a 22 year period is represented in the histogram. By how much did the maintenance cost decrease in 1998991998-99 when compared to 1994951994-95?

    Solution
    From the given histogram, we cay say
    The maintenance cost decrease in 1998991998-99 when compared to 199495=200100=1001994-95 = 200 - 100 = 100
  • Question 7
    1 / -0
    The following line graph gives the ratio of the amounts of imports by a company to the amount of exports from that company over the period from 19951995 to 20012001.
    The imports were minimum proportionate to the exports of the company in the year ?

    Solution
    The imports are minimum proportionate to the exports implies that the ratio of the value of imports to exports has the minimum value.
    Now, this ratio has a minimum value 0.350.35 in 19971997

    Hence, the imports are minimum proportionate to the exports in 19971997.
  • Question 8
    1 / -0
    If the imports of the company in 1996 was Rs. 272 crores, the exports from the company in 1996 was ?

    Solution
    Ratio of imports to exports in the year 1996 = 0.85.
    Let the exports in 1996 = Rs. x crores.
    Then, 272x=0.85x=2720.85=320\displaystyle \frac { 272 }{ x } =0.85\Rightarrow x=\frac { 272 }{ 0.85 } =320
     \displaystyle \therefore  Exports in 1996 = Rs. 320 crores.
  • Question 9
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    Brain and Jared live in the same apartment complex and they both bike to and from the work every day. The figure above shows a typical commute home for each of them. Based on the figure, which of the following statements is true?

    Solution
    \Rightarrow  In the given figure we can see Jared's distance between workplace and the apartment is more than Brain's.
    \Rightarrow Jared takes the same time as Brain to travel that distance.
    \therefore Jared bikes a longer distance than Brain in the same amount of time, so Jared must bike at a faster rate.
  • Question 10
    1 / -0
    Which of the following statements Is true?
    Solution
    We know that horizontal axis in the coordinate plane is called the x-axis.
    The vertical axis is called the y-axis.
    The point at which the two axes intersect is called the origin. 
    The origin is at 0 on the x-axis and 0 on the y-axis.
    And the scale on both axes are not the same in Cartesian plane.
    Then, option (D) is true.
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