Number System Questions Practice Question and Answer
8 Q: In a class, 3/5 of the students are girls and rest are boys. If 2/9 of the girls and 1/4 of the boys are absent. What part of the total number of students are present?
22288 45d690346fb83f62138db79c7
5d690346fb83f62138db79c7- 123/30true
- 223/36false
- 318/49false
- 417/25false
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Answer : 1. "23/30"
Q: 64329 is divided by a certain number, 175, 114 and 213 appear as three successive remainders. The devisor is
1689 05d91f524a01ffd5718894157
5d91f524a01ffd5718894157- 1184false
- 2224false
- 3234true
- 4296false
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Answer : 3. "234"
Explanation :
Number at (i) = 643 – 175 = 468
Number at (ii) = 1752 – 114 = 1638
Number at (iii) = 1149 – 213 = 936
Clearly, 468, 1638 and 936 are multiples of 234 and 234 > 213.
Divisor = 234
Q: Smallest prime number greater than 200? 1711 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: $$(49)^{15}-1$$ is exactly divisible by :
17512 55d690467d7fc393e309ecd7b
5d690467d7fc393e309ecd7b- 150false
- 251false
- 329false
- 48true
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Answer : 4. "8"
Q: The difference between 4632 and 20000 is what number 2776 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: if 3 times a number exceeds its 3/5 by 60, then the number is.
3945 05d68fc26fb83f62138db7145
5d68fc26fb83f62138db7145- 125true
- 235false
- 345false
- 460false
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Answer : 1. "25"
Q: A person gives 1/4 of his property to his daughter, 1/2 to his sons and 1/5 for charity. How much has he given away?
6606 15d6901964130032e96a6135b
5d6901964130032e96a6135b- 11/20false
- 219/20true
- 31/10false
- 49/10false
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Answer : 2. "19/20"
Q: If $${17}^{200}$$ is divided by 18, the remainder is:
1716 05d7788e5e871b064d456dfb5
5d7788e5e871b064d456dfb5- 117false
- 216false
- 31true
- 42false
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