• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Number System

Number System
What is the average of the following set of numbers ? 173, 192, 198, 204, 211, 223, 227

204
210
234
222

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Avg  = 173 + 192 + 198 + 204 + 211 + 223 + 227/7        = 1428/7        = 204

Number System
1051.64 - 159.42 - 96.84 + 162.37 - 940.26 + 504 = ?

521.49
511.49
501.49
491.49

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 1718.01 - 1196.52 = 521.49

Number System
The sum of the present age of a father and a son is 60 years. Five years before, the age of the father was four times that of son. What is the present age of the son ?

15 years
25 years
18 years
21 years

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the father's age be x and son's age yTherefore, x + y = 60   ....................(i)Five years back, (x - 5) = 4 (y - 5)x - 4y = - 15 ......................(2)Solving (1) and (2), x = 45 and y = 15

Number System
If the sum of the two numbers is 22 and the sum of their squares is 404, then the product of the numbers is:

40
44
88
80

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the numbers be x and y. Then, (x + y) = 22 and x2 + y2 = 404 Now, 2xy = (x + y)2 - (x2 + y2) 2xy= 222 - 404 = 484 - 404 = 80xy = 40

Number System
What least number should be added to 8602 to make it a perfect square ?

41
47
51
36

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

So, (93)² = 8649So, the required number to be added to make a perfect square = 8649 - 8602 = 47

Number System
93296 - 45874 + 20382 - 56817 = ?

109867
109857
109877
109887

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

? = 113678 - 102691 = 109887

MORE MCQ ON Number System

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑