Number System Questions Practice Question and Answer
8 Q: Any six-digit number that is formed by repeating a three-digit number, is always divisible by:
910 0647f51c9f4063d472f2d2636
647f51c9f4063d472f2d2636- 1111false
- 21001true
- 319false
- 4101false
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- SingleChoice
Answer : 2. "1001"
Q: Which of the following fraction is the smallest?
$$7\over 6 $$,$$7\over 9$$,$$4\over 5$$,$$5\over 7$$
908 065081b75e918d9427f49639d
65081b75e918d9427f49639d- 1$$7\over 6 $$false
- 2$$7\over 9$$false
- 3$$4\over 5$$false
- 4$$5\over 7$$true
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Answer : 4. "$$5\over 7$$"
Explanation :

Q: Which of the following statements is a false statement?
(A) CRT The monitor is the thinnest monitor.
(B) Dot matrix is the fastest computer.
(C) CAG memory is slower than the main memory.
(D) Bar code reader is an input device.
905 064b920e8568e7ff594be2e6b
64b920e8568e7ff594be2e6b- 1a and bfalse
- 2a, b and ctrue
- 3c and dfalse
- 4a and dfalse
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Answer : 2. "a, b and c"
Explanation :
All statements are true.
- CRT The monitor is the thinnest monitor.
- Dot matrix is the fastest computer.
- CAG memory is slower than the main memory.
Q: The sum of the squares of two natural consecutive odd numbers is 394. The sum of the numbers is –
895 06303357ffef7996822e8f226
6303357ffef7996822e8f226- 124false
- 232false
- 340false
- 428true
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- SingleChoice
Answer : 4. "28"
Explanation :
Let the consecutive odd numbers be x and (x+2)
We know that x2 + (x + 2)2 = 394
We know x2 + x2 + 4x + 4 = 394
We know 2 x2 +4x – 390 = 0
We know x2 + 2x – 195 = 0
We know (x +15) (x-13) = 0
We know x = 13
We know Required sum = 13 +15 =28
Q: Which of the following is the least 6-digit number that is divisible by 93?
893 064476f9acd6ea382cf8175b0
64476f9acd6ea382cf8175b0- 1100065false
- 2100070false
- 3100075false
- 4100068true
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Answer : 4. "100068"
Q: If the 8 digit number 789x531y is divisible by 72, then the value of (5x - 3y) will be?
869 0631830eed9ac741324d7846c
631830eed9ac741324d7846c- 10false
- 2-1true
- 32false
- 41false
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- SingleChoice
Answer : 2. "-1"
Q: 1! + 2! + 3! + 4! + ......... + 50! Find the unit digit of?
869 0631832a12d4ba278b6662521
631832a12d4ba278b6662521- 11false
- 23true
- 35false
- 48false
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- SingleChoice
Answer : 2. "3"
Q: A number when divided by 899 gives a remainder 63. If the same number is divided by 29, the remainder will be
864 06508274200fe54b911b52bdf
6508274200fe54b911b52bdf- 110false
- 25true
- 34false
- 42false
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Answer : 2. "5"
Explanation :
Solution: $${Remainder\over 29}={7\over 9}$$
=> remainder (शेषफल)=5

