Number System Questions Practice Question and Answer
8 Q: The largest natural number which exactly divides the product of any four consecutive natural numbers is
1010 06024eeabcce66f776c86c6b6
6024eeabcce66f776c86c6b6- 124true
- 2120false
- 36false
- 412false
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Answer : 1. "24 "
Q: The east positive integer that should be subtracted from 3011 x 3012 so that the difference is a perfect square is-
1008 0630351bd29cb4630442475e5
630351bd29cb4630442475e5- 13009false
- 23010false
- 33011true
- 43012false
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Answer : 3. "3011"
Explanation :
We know that 3011 x 3012
= 3011 (3011 + 1)
= (3011)2 + 3011
We know
Required least number = 3011
Q: The least number that should be added to 2,397 so that the sum is exactly divisible by 3, 4, 5 and 6 ?
1007 160bf5e4b5d840673873f1174
60bf5e4b5d840673873f1174- 16false
- 24false
- 33true
- 45false
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Answer : 3. "3"
Q: If two numbers are each divided by the same divisor, the remainders are respectively 3 and 4. If the sum of the two numbers be divided by the same divisor, the remainder is 2. The divisor is
1002 0650d401473357650645d2108
650d401473357650645d2108- 19false
- 27false
- 35true
- 43false
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Answer : 3. "5 "
Explanation :
Required divisor = 3 + 4 – 2 = 5
Q:Directions: Find the wrong number in the following number series:
0.5, 2, 1, 4, 32, 512, 16384
1001 064d4ba2490a003851de3eaf3
64d4ba2490a003851de3eaf3- 11false
- 22true
- 34false
- 432false
- 5512false
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Answer : 2. "2"
Q: Find the greatest number which divides 108, 124 and 156, leaving the same remainder.
998 06479d532411cb5478d8b1d2b
6479d532411cb5478d8b1d2b- 118false
- 210false
- 312false
- 416true
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Answer : 4. "16 "
Q: The largest three-digit number that gives the same remainder 2 when divided by 3, 5 and 9 is ________.
995 064b4f33836fc1bf576504b82
64b4f33836fc1bf576504b82- 1999false
- 2984false
- 3998false
- 4992true
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Answer : 4. "992"
Q: In a class, there are ' z ' students. Out of them ‘x’ are boys. What part of the class is composed of girls?
994 05ee84aec79b5ea388bec1435
5ee84aec79b5ea388bec1435- 1$$1-{x\over z} $$true
- 2$${x\over z}-1 $$false
- 3$${x\over z} $$false
- 4$${z\over x} $$false
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