Number System Questions Practice Question and Answer
8 Q: When a positive integer n is divided by 5 the remainder is 2. What is the remainder when the number 3n is is divided by 5 ?
822 160fe3ac8f8986716bdf6aa3e
60fe3ac8f8986716bdf6aa3e- 12false
- 21true
- 34false
- 43false
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Answer : 2. "1"
Q: 1 + 2 + 3 + ............. + 49 + 50 + 49 + 48 + ........+ 3 + 2 + 1 is equal to -
1594 060f7d3cb3ca0726dff34f09b
60f7d3cb3ca0726dff34f09b- 12550false
- 22380false
- 32500true
- 42400false
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Answer : 3. "2500 "
Q: Smallest prime number greater than 200? 1755 05b5cc607e4d2b4197774b519
5b5cc607e4d2b4197774b519- 1201false
- 2205false
- 3211true
- 4203false
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Answer : 3. "211"
Explanation :
Answer: C) 211 Explanation: From the trial and error method of division, 201 is divisible by 3 205 is divisible by 5 203 is divisible by 7 Hence, after eliminating three options, remained is 211 and is divisible by only 1 and itself. Therefore, 211 is the smallest prime number greater than 200.
Q: The difference between 4632 and 20000 is what number 2831 05b5cc5ffe4d2b4197774b42c
5b5cc5ffe4d2b4197774b42c- 115368true
- 212652false
- 314562false
- 414965false
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Answer : 1. "15368"
Explanation :
Answer: A) 15368 Explanation: The difference between 4632 and 20000 is given by subtracting smaler number from the bigger number. Here the bigger number is 20000 Smaller number is 4632 Now, subtracting 4632 from 20000 20000 - 4632 = 15368 and the resut is an even number. Hence, The difference between 4632 and 20000 is 15368 and is an even number.
Q: The least value of n, such that (1 + 3 + 32 + ... + 3n) exceeds 2000, is-
1022 060c19e057dd2173b078d681c
60c19e057dd2173b078d681c- 17false
- 28true
- 33false
- 45false
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Answer : 2. "8 "
Q: The median of 31, 25, 17, 23, 45 and 59 is:
987 060bf5f1b2aecd10d8a04c7c5
60bf5f1b2aecd10d8a04c7c5- 123false
- 225false
- 331false
- 428true
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Answer : 4. "28"
Q: The least number that should be added to 2,397 so that the sum is exactly divisible by 3, 4, 5 and 6 ?
709 160bf5e4b5d840673873f1174
60bf5e4b5d840673873f1174- 16false
- 24false
- 33true
- 45false
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Answer : 3. "3"
Q: If 13 + 23 + .....+103 = 3025 then 4 + 32 + 108 + ..... 4000 is equal to -
2400 060be07d39f482d735c8f2faf
60be07d39f482d735c8f2faf- 112300false
- 212500false
- 312100true
- 411800false
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