Number System problems
- 1. When a number is divided by 12 then dividend becomes 1/4 of the other number. by how much per cent is first number greater than the second number?
Options- A. 200
- B. 150
- C. 300
- D. Data inadequate Discuss
Correct Answer: Data inadequate
Explanation:
Here neither the remainder nor the dividend nor the second number is given. So, can't be determined.
- 2. If the sum of one-half, one-third and one-fourth of a number exceeds the number itself by 4, what could be the number?
Options- A. 24
- B. 36
- C. 72
- D. None of these Discuss
Correct Answer: None of these
Explanation:
Let the number be N
? (1/2 + 1/3 + 1/4)N = {(6 +4 +3) x N } / 12
= 13N / 12
According to the question,
13N/12 - N = 4
? N = 48
- 3. 1/5 of a number is equal to 5/8 of the second number. If 35 is added to the first number then it becomes 4 times of second number. What is the second number?
Options- A. 125
- B. 70
- C. 40
- D. 25 Discuss
Correct Answer: 40
Explanation:
Let first and second numbers are p & q.
p/5 = 5q/8
? p/q = 25/8 ...(i)
p + 35 = 4q
or 25q/8 + 35= 4q
? q = 40.
- 4. 469157 x 9999 =?
Options- A. 4586970843
- B. 4686970743
- C. 4691100843
- D. 4586870843 Discuss
Correct Answer: 4691100843
Explanation:
469157 x 9999 = 469157 x (10000-1)
= 4691570000 - 469157
= 4691100843.
- 5. 2?63 / 11 =233
Options- A. 4
- B. 3
- C. 6
- D. 5 Discuss
Correct Answer: 5
Explanation:
Let N / 11 = 233
Then, N = 233 x 11 = 2563
? Missing digit is 5.
- 6. 2013 x ....1= 62403
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
Correct Answer: 3
Explanation:
Let 2013 x N = 62403.
Then, N = 62403 / 2013 = 31
? Missing digit is 3.
- 7. 777777 / 11 =?
Options- A. 7077
- B. 70707
- C. 7707
- D. 7007 Discuss
Correct Answer: 70707
Explanation:
777777 / 11 = 70707.
- 8. What value should come in place of the question mark(?) in the following question?
? x 11 = 555555
Options- A. 505
- B. 5050
- C. 50505
- D. 5005 Discuss
Correct Answer: 50505
Explanation:
Let N x 11 = 555555
Then N = 555555 / 11 = 50505.
- 9. What value should come in place of the question mark(?) in the following question?
87 x? = 3393
Options- A. 39
- B. 49
- C. 27
- D. 67 Discuss
Correct Answer: 39
Explanation:
Let 87 x N = 3393
Then, N = 3393 / 87 =39 .
- 10. What value should come in place of the question mark(?) in the following question?
? x 147 = 6909
Options- A. 37
- B. 47
- C. 27
- D. 67 Discuss
Correct Answer: 47
Explanation:
Let N x 147 = 6909
Then, N = 6909 / 147 = 47
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