Number System Questions For Railway Group-D PDF:
Download Number System Questions For Railway Group-D PDF with detailed solutions. Important Practice questions based on previous year railway exam papers.
Download Number System Questions For Railway Group-D PDF
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Question 1: What is the smallest number by which 3600 must be divided to make a perfect cube ?
a) 45
b) 50
c) 300
d) 450
Question 2: The H.C.F. of two numbers is 11 and their L.C.M. is 7700. If one of the numbers is 275, the other is :
a) 279
b) 283
c) 308
d) None of the above
Question 3: 994 x 1006 is equal to :
a) 999664
b) 999644
c) 996644
d) 999964
Question 4: The sum of two numbers is 45 and their ratio is 7:8. The two numbers are:
a) 20, 25
b) 21, 24
c) 22, 23
d) None of the above
Question 5: The square of 349 is :
a) 122801
b) 122881
c) 121801
d) None of the above
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Question 6: Arrange 2/3; 4/5; 1/2; 3/4 in descending order :
a) 4/5 > 2/3 > 1/2 > 3/4
b) 1/2 > 2/3 > 4/5 > 3/4
c) 3/4 > 1/2 > 4/5 >2/3
d) 4/5 > 3/4 > 2/3 > 1/2
Question 7: Find the number which is as much greater than 84 as it is less than 108 :.
a) 92
b) 94
c) 96
d) 98
Question 8: In a school 10% of the boys are same in number as 1/ 4 th of the girls. What is the ratio of boys to girls in the school?
a) 3 : 2
b) 5 : 2
c) 5 : 3
d) 4 : 1
Question 9: The average of 0.3, 3, 0.03 and 0.002 is :
a) 833
b) 83.3
c) 0.803
d) 0.833
Question 10: The square root of 7744 is :
a) 98
b) 92
c) 88
d) 82
Railway Group-D All Important Questions PDF
Answers:
1) Answer (D)
2) Answer (C)
3) Answer (D)
4) Answer (B)
5) Answer (C)
6) Answer (D)
7) Answer (C)
8) Answer (B)
9) Answer (D)
10) Answer (C)
