Self Studies

Rational Numbers Test - 3

Result Self Studies

Rational Numbers Test - 3
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0

    p: Every fraction is a rational number. 
    q: Every rational number is a fraction. 

    Which of the following is correct?

    Solution

    Let us consider a fraction 3/5 and a rational number =−4/7.. By definition, 3/5 is a rational number. So, p is true. By definition, −4/7
    is not a fraction, since, −4 is not a natural number. So, q is false

     

  • Question 2
    1 / -0

    The value of x such that −3/8 and x/−24 are equivalent rational numbers is____. 

    Solution

    −3/8 =x/−24⇒−3/8×3/3=−x/24⇒  

    −9/24=−x/24⇒x=9

     

  • Question 3
    1 / -0

    For any two rational numbers x and y which of the following is/are correct, if x is positive and y is negative?

    (1) x<y
    (2) x=y
    (3) x>y

    Solution

    Positive rational numbers are greater than negative rational numbers. 

     

  • Question 4
    1 / -0

    Which of the following pairs represent the same rational number? 

    Solution

    −24/15 is the equivalent rational number of −8/5

     

  • Question 5
    1 / -0

    3/20 of a delegation are from India, 1/4 are from Britain, 3/10 are from Germany and the rest are Americans. If there are 1200 members in the delegation, calculate how many Americans are there? 

    Solution

    Delegation from India =3/20 × 1200=180 Delegation from Britain 1/4 ×1200=300
    Delegation from Germany  =3/10 ×1200=360 Delegation from America =1200−(180+300+360)=1200−840=360

     

  • Question 6
    1 / -0

    Which of the following statements is correct?

    Solution

    All the given statements are correct. Consider 4/5 [a] Since4/5+0=4/5, 1 is the additive identity of rational numbers. [b] Since  4/5 ×1=4/5, is the  multiplicative identity of rational numbers. [c] Since 0 is the additive nverse of 0.

     

  • Question 7
    1 / -0

    A farmer grows vegetables in his field. In 2/3 of the field, he grows potatoes, in 1/4 he grows onions and in the rest of the field he grows tomatoes. In what part of the field does he grow tomatoes? 

    Solution

    Let the total area of field be 1. Part of field in which the farmer grows tomatoes

    =1−(2/3 + 1/4)=1−(8+3/12)=1−11/12=1/12

     

Self Studies
User
Question Analysis
  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now