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Number System Questions

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0% found this document useful (0 votes)
92 views9 pages

Number System Questions

Uploaded by

mathisaravanan23
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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1.

If the number 97215X6 is completely divisible by 11, then


the smallest whole number in place of X will be?
a. 3 b. 2 c. 1 d. 5

2. If the number 91876X2 is completely divisible by 8, then


the smallest whole number in place of X will be?
a. 1 b. 2 c. 3 d. 4

3. If x and y are the two digits of the number 653xy such


that this number is divisible by 80, then x+y= ?
a. 2 b. 3 c. 4 d. 6

4. If the product 4864*9P2 is divisible by 12, the value of P


is what?
a. 2 b. 5 c. 6 d. 1

5. On dividing a number by 5, we get 3 as remainder. What


will be the remainder when the square of this number is
divided by 5?
a. 0 b. 1 c. 2 d. 4
6. When the number is divided by 13, the remainder is 11.
When the same number is divided by 17, the remainder
is 9. What is the number?
a. 339 b. 349 c. 369 d. data inadequate

7. If a number 45678X9231 is divisible by 3, then how


many values are possible for X.
a. 1 b. 2 c. 3 d. 4

8. Which of the following numbers is divisible by 3?


a. 782 b. 321 c. 652 d. 800

9. 252 is divisible by 6 because?


a. The digits add up to 6.
b. The sum of the digits is divisible by 6.
c. Its even and the sum of the digits is divisible by 3.
d. The sum of the digits is even.

10. Which of the following numbers is divisible by 4?


a. 503 b. 824 c. 713 d. 350

11. Which of these numbers is divisible by 2 and 5?


a. 675 b. 674 c. 670 d. 673
12. How do you know if a number is divisible by 3?
a. If the sum of the digits is a multiple of 3
b. If it ends with 3, 6, or 9.
c. If it is an even number.
d. If it ends in 0 or 5.

13. 6721 is divisible by


a. 3 b. 7 c. 5 d. 11

14. The number 477 is divisible by the following numbers


except
a. 3 b. 6 c. 9 d. None of these

15. All of these numbers are divisible by 5 except for…


a. 75395
b. 984940
c. 222222235
d. 8943892

16. Determine which number is divisible by 2?


a. 345 b. 873 c. 968 d. 439
17. Determine which number is divisible by 3 but not
divisible by 9.
a. 315 b. 831 c. 900 d. 459

18. What is the unit digit in 3*38*537*3256?


a. 4 b. 2 c. 6 d. 8

19. What is the unit digit of the product


61*62*63*…….*69?
a. 0 b. 2 c. 6 d.8

20. What is the unit digit of 16123*51+8-3+4*20?


a. 2 b. 8 c. 4 d. 6

21. What is the unit digit of (2753)^167?


a. 1 b. 3 c. 7 d. 9

22. What is the unit digit of the product


17^71*36^63*23^65 ?
a. 1 b. 2 c. 3 d.4

23. What is the unit digit of


1590^2+1591^2+1592^2+1593^2
a. 4 b. 1 c. 2 d. 3

24. Find the unit digit of 8+8^2+8^3+…….+8^100?


a. 1 b. 4 c. 6 d.0

25. What is the unit digit of


(217)^413*(819)^547*(414)^624*(342)^812?
a. 2 b. 4 c. 6 d. 8

26. Simplify the given equation? 360/38/6/1/5

27. Find the difference between the following questions.

i) 352 – 342
ii) 1342 – 1332
iii) 622 – 612.

28. In an auditorium there are 21025 chairs. If the


number of rows and columns are the same. Find how
many rows are there?
a. 145 b. 320 c. 290 d. 146
29. Find the sum of all the numbers from 1 to100?
a. 5010 b. 5020 c. 5050 d. 5040

30. What will be the sum of even numbers between 0 to


51?
a. 625 b. 590 c. 650 d. 600

31. Find the sum of the series 1+2+3+……. + 89+90 ?


a. 3868 b. 4095 c. 3260 d. 4325

32. What is the sum of all odd numbers from 1 to 29?


a. 237 b. 225 c. 239 d. 240

33. What is the value of 11²+12²+13²+….+20²


a. 2685 b. 2585 c. 2870 d. 2485

34. What will be the unit digit when the product of 1st 10
natural number is divided by 100?
a. 0 b. 2 c. 5 d. 6 e. 8

35. Find the product of 57*61*39*53


a. 7086751 b. 7086953 c. 7186959 d. 7186965
e. 7286977
36. Find the unit digit of all the prime numbers between
1 and 13.
a. 0 b. 2 c. 3 d. 5 e. 6

37. What is the unit digit of the ( 63741793 x 625317 x


341491 )
a. 1 b. 0 c. 3 d.4

38. Four consecutive even numbers have a


sum of 92. What are the numbers?
a. 20,22,24,26 b. 22,24,26,28 c.
28,30,32,34 d. 32,34,36,38

39. Five consecutive numbers have a sum of


zero. What are the numbers?
a.1,2,3,4,5 b. -2,-1,0,1,2
c. 2,3,4,5,6 d. 5,6,7,8,9

40. Two consecutive odd numbers have a


product of 35. What are the numbers?
a. 13,15 b. 23,25 c. 5,7 d. 4,6
41. Three consecutive multiples of five have a
sum of 75. What are the numbers?
a. 75,100,125 b. 20,25,30 c. 40,45,50 d.
25,30,35

42. The product of two consecutive numbers is


12. What are the numbers?
a. 4,5 b. 3,4 c. 5,6 d. 7,8

43. If the sum of four consecutive integers is


46, what are the numbers?
a. 10,11,12,13 b. 56,57,58,59 c.
80,81,82,83 d. 15,16,17,18

44. The sum of five consecutive even integers


is 50. What are the numbers?
a. 8,10,12,14,16 b. 6,8,10,12,14 c.
16,18,20,22,24 d. 80,82,84,86,88

45. If HCF(252, 594) = 18, find LCM(252, 594)

a. 8216 b. 8316 c. 8416 d. 8516


46. Player 1 and player 2 are running around a circular field. Player 1 takes 16
minutes to take one round, while Player 2 completes the round in 20
minutes. If both start simultaneously and go in the same direction, after
how much time will they meet at the starting point?

a. 120 b. 80 c. 120 d. 36

47.

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