NUMBER SYSYTEM QUESTIONS PART 2
(THIS PART CONSISTS OF IMPORTANT QUESTIONS FROM PREVIOUS YEARS EXAMINATIONS LIKE TCS,SBI PO,RRB AND DECIMAL CONVERSIONS)
01-20 = PLACEMENT BITS
20-25=RRB
26-30=BANK PO
31-40=PREVIOUS TCS QUESTION PAPER
40-50= CONVERTIONS
1)(112 x 5^4) = ?
A. 67000B. 70000
C. 76500
D. 77200
2) It is being given that (2^32 + 1) is completely divisible by a whole number. Which of the following numbers is completely divisible by this number?
A. (216 + 1)
B. (216 - 1)
C. (7 x 223)
D. (296 + 1)
3)A number when divided by 114,leaves remainder 21.If the same number is divided by 19,find the remainder
(s.s.c.,2010)
A.6
B.4
C.2
D.8
4. What least number must be added to 1056, so that the sum is completely divisible by 23 ?
A. 2
B. 3
C. 18
D. 21
E. None of these
5. 1397 x 1397 = ?
A. 1951609
B. 1981709
C. 18362619
D. 2031719
E. None of these
6. 5358 x 51 = ?
A. 273258
B. 273268
C. 273348
D. 273358
7.The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller number ?
A. 240
B. 270
C. 295
D. 360
8. (?) - 19657 - 33994 = 9999
A. 63650
B. 53760
C. 59640
D. 61560
E. None of these
Answer: Option A
9. The sum of first 45 natural numbers is:
A. 1035
B. 1280
C. 2070
D. 2140
10. 753 x 753 + 247 x 247 - 753 x 247 (numerator)/(denominator)= ?
753 x 753 x 753 + 247 x 247 x 247
A. 1/1000
B. 1/506
C. 253/500
D.None of these
11. If the number 481 * 673 is completely divisible by 9, then the smallest whole number in place of * will be:
A. 2
B. 5
C. 6
D. 7
E. None of these
12. The difference between a positive proper fraction and its reciprocal is 9/20. The fraction is:
A. 3/5
B. 3/10
C.4/5
D.4/3
13.On dividing a number by 56, we get 29 as remainder. On dividing the same number by 8, what will be the remainder ?
A. 4
B. 5
C. 6
D. 7
14. If n is a natural number, then (6n2 + 6n) is always divisible by:
A. 6 only
B. 6 and 12 both
C. 12 only
D. by 18 only
15.What will be remainder when (6767 + 67) is divided by 68 ?
A. 1
B. 63
C. 66
D. 67
16. what is the place value of 5 in 3254710?(clat,2010)
A.5
B.10000
C.50000
D.54710
17.The face value of 8 in the number 458926 is
A.8
B.1000
C.8000
D.8926
18.The sum of the place values of 3 in the number 503535 is ?(MBA,2005)
A.6
B.60
C.3030
D.3300
19.The sum of greatest and smallest number of five digits is
A.11,110
B.10,999
C.109,999
D.11,100
20.what is the minimum number of four digits formed by using the digits 2,4,0,7
A.2047
B.2247
c.2407
D.2470
(20-25) are the previous bits from RRB
21.if a and b are two numbers such that ab=0,then
A.a=0 and b=0
B.a=0 or b=0 or both
C.a=0 and b not equal to 0
$.b=0 and a not equal to 0
22.which of the following is a prime number
a.143
b.289
c.117
d.359
23. if you subtract -1 from +1 ,what will be the result?
a.-2
b.0
c.1
d.2
24.217*217+183*183=? (*=multiplication)
a.79698
b.80578
c.80698
d.81268
25.(999)^2-(998)^2=?
a.1992
b.1995
c.1997
d.1998
(26-30) are the previous bits from (BANK PO)
26.1260/14/9=?
a.9
b.10
c.81
d.810
27.136*12*8=?(*=
a.12066
b.13046
c.13064
d.none of the above
28.8888+848+88-?=7337+737
a.1450
b.1670
c.1090
d.1750
29.414*?*7=127512
a.36
b.40
c.44
d.48
30.what is 786 times 964?
a.757704
b.754164
c.759726
d.749844
from 31 to 40 questions you find TCS RECRUITMENT Related questions
31. How many of the numbers x (x being integer) with 10<= x<= 99 are 18 more than the sum of their digits
a. 9
b. 12
c. 18
d. 10
32. X = 101102103104105106107……
a.4
b.5
c.2
d.1
33.7^1+7^2+7^3+…….+7^205. Find out how many numbers present which unit place contain 3?
a.44
b.51
c.25
d.65
34. Given that 0 < a < b < c < d, which of the following the largest ?
a.(c+d) / (a+b)
b.(a+d) / (b+c)
c.(b+c) / (a+d)
d.(b+d) / (a+c)
35.The sum of the digits of a three digit number is 17, and the sum of the squares of its digits is 109. If we subtract 495 from the number, we shall get a number consisting of the same digits written in the reverse order. Find the number.
a. 773
b. 683
c. 944
d. 863
36.2ab5 is a four digit number divisible by 25. If a number formed from the two digits ab is a multiple of 13, then ab is
a.52
b.45
c.10
d.25
37.A school has 120, 192 and 144 students enrolled for its science, arts and commerce courses. All students have to be seated in rooms for an exam such that each room has students of only the same course and also all rooms have equal number of students. What is the least number of rooms needed?
a.18
b.12
c.19
d.20
38.A two digit number is 18 less than the square of the sum of its digits. How many such numbers are there?
a.1
b.2
c.3
d.4
39.Find the greatest number that will divide 148 246 and 623 leaving remainders 4 6 and 11 respectively?
a.20
b.12
c.6
d.48
40.Find L.C.M. of 1.05 and 2.1
a. 1.3
b. 1.25
c. 2.1
d. 4.30
(40 TO 50) Questions Conversions in number system
41. The binary equivalent of the decimal number 125 is
a.1100100 b.1111101 c.1101100 d.1111111
42. The hexa decimal equivalent of the decimal number 128 is
a.128 b.175 c.80 d.81
43. The decimal number 1356 expressed in octal system equals
a.2514 b.125 c.353 d.235
44. The decimal conversion of the binary number (1111)2 is…..
a.31 b.15 c.13 d.14
45. The sum of (101101)2 and (111011)2 is
a.1010110 b.1101000 c.1000110 d.1110010
46. The square root of (2011)5 is
a.(21)5 b.(31)5 c.(121)5 d.(41)5
47. The sum of (6E)16 and (3B)12 is
a.(157)10 b.(137)11 c.(166)8 d.(192)7
48. The decimal equivalent of hexa-decimal number (ABC)16
a.2847 b.2748 c.7428 d.1478
49. The decimal fraction 0.75 in the binary system equals
a.0.11 b.0.00 c.0.10 d.0.111
50. The octal equivalent to the binary (11010)2 is
a.26 b.32 c.28 d.30
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