Mathematics Quiz For RRB NTPC : 11th January 2020_00.1
Latest SSC jobs   »   Mathematics Quiz For RRB NTPC :...

Mathematics Quiz For RRB NTPC : 11th January 2020 of Geometry, mensuration and Percentage

Mathematics Quiz For RRB NTPC : 11th January 2020_50.1

Q2. The orthocentre of a triangle is the point where
(a) the medians meet
(b) the altitudes meet
(c) the right bisectors of the sides of
(d) the bisectors of the angles

Q3. ABCD is a cyclic trapezium in which AD ‖ BC. If ∠ABC = 70°, then ∠BCD is
(a) 110°
(b) 80°
(c) 70°
(d) 90°

Q4. The average of marks obtained by 100 candidates in a certain examination is 30. If the average marks of passed candidates is 35 and that of the failed candidates is 10, what is the number of candidates who passed the examination?
(a) 60
(b) 70
(c) 80
(d) 90

Q5. If a + b = 10 and ab = 21, then the value of (a – b)2 is
(a) 15
(b) 16
(c) 17
(d) 18

Q6. In a circle, a chord, Mathematics Quiz For RRB NTPC : 11th January 2020_60.1 cm long, makes a right angle at the centre. Then the length of the radius of the circle will be
(a) 2.5 cm
(b) 5 cm
(c) 7.5 cm
(d) 10 cm

Q7. Thousand solid metallic spheres of diameter 6 cm are melted and recast into a new solid sphere. The diameter of the new sphere (in cm) is
(a) 30
(b) 90
(c) 45
(d) 60

Q8. If the value of a company stock drops from Rs. 25 per share to Rs. 21 per share, the percentage decrease per share is
(a) 4%
(b) 8%
(c) 12%
(d) 16%

Q9. Three consecutive angles of a cycle quadrilateral are in the ratio of 1 : 4 : 5. The measure of fourth angle is
(a) 120°
(b) 60°
(c) 30°
(d) 80°

Q10. Nine students of a class contribute a certain sum of money. Seven of them gave Rs. 50 each and the other two gave Rs. 90 more than the others. The average contribution of the class of 9 students is
(a) Rs. 70
(b) Rs. 50
(c) Rs. 100
(d) Rs. 120

Solutions:

 

Mathematics Quiz For RRB NTPC : 11th January 2020_70.1

   S2. Ans.(b)
   Sol.
The point where all three altitudes of a triangle intersect is called orthocenter.

   S3. Ans.(c)
   Sol.

Mathematics Quiz For RRB NTPC : 11th January 2020_80.1

  S4. Ans.(c)
  Sol.

Mathematics Quiz For RRB NTPC : 11th January 2020_90.1

Mathematics Quiz For RRB NTPC : 11th January 2020_100.1

Mathematics Quiz For RRB NTPC : 11th January 2020_110.1

Mathematics Quiz For RRB NTPC : 11th January 2020_120.1

Sharing is caring!

June Current Affairs PDF

×

Download success!

Thanks for downloading the guide. For similar guides, free study material, quizzes, videos and job alerts you can download the Adda247 app from play store.

Thank You, Your details have been submitted we will get back to you.

Was this page helpful?

Leave a comment

Your email address will not be published. Required fields are marked *

Join India's largest learning destination

What You Will get ?

  • Job Alerts
  • Daily Quizzes
  • Subject-Wise Quizzes
  • Current Affairs
  • Previous year question papers
  • Doubt Solving session

Login

OR

Forgot Password?

Join India's largest learning destination

What You Will get ?

  • Job Alerts
  • Daily Quizzes
  • Subject-Wise Quizzes
  • Current Affairs
  • Previous year question papers
  • Doubt Solving session

Sign Up

OR
Join India's largest learning destination

What You Will get ?

  • Job Alerts
  • Daily Quizzes
  • Subject-Wise Quizzes
  • Current Affairs
  • Previous year question papers
  • Doubt Solving session

Forgot Password

Enter the email address associated with your account, and we'll email you an OTP to verify it's you.


Join India's largest learning destination

What You Will get ?

  • Job Alerts
  • Daily Quizzes
  • Subject-Wise Quizzes
  • Current Affairs
  • Previous year question papers
  • Doubt Solving session

Enter OTP

Please enter the OTP sent to
/6


Did not recive OTP?

Resend in 60s

Join India's largest learning destination

What You Will get ?

  • Job Alerts
  • Daily Quizzes
  • Subject-Wise Quizzes
  • Current Affairs
  • Previous year question papers
  • Doubt Solving session

Change Password



Join India's largest learning destination

What You Will get ?

  • Job Alerts
  • Daily Quizzes
  • Subject-Wise Quizzes
  • Current Affairs
  • Previous year question papers
  • Doubt Solving session

Almost there

Please enter your phone no. to proceed
+91

Join India's largest learning destination

What You Will get ?

  • Job Alerts
  • Daily Quizzes
  • Subject-Wise Quizzes
  • Current Affairs
  • Previous year question papers
  • Doubt Solving session

Enter OTP

Please enter the OTP sent to Edit Number


Did not recive OTP?

Resend 60

By skipping this step you will not recieve any free content avalaible on adda247, also you will miss onto notification and job alerts

Are you sure you want to skip this step?

By skipping this step you will not recieve any free content avalaible on adda247, also you will miss onto notification and job alerts

Are you sure you want to skip this step?