Discussion
Home ‣ Aptitude ‣ Number System Comments
- Question
- The sum of three consecutive number is given. What is the difference between first and third number?
Options- A. One
- B. Three
- C. Either (A) or (B)
- D. Two
- Correct Answer
- Two
ExplanationLet the three consecutive numbers be x, x+1 and x+2 respectively
? Diff between first and third numbers = (x + 2) - x
= 2 - 1. If a number is subtracted from the square of its one half, the result is 48. The square root of the number is?
Options- A. 4
- B. 5
- C. 6
- D. 8 Discuss
- 2. The ratio between two numbers is 2 : 3. If the consequent is 24, the antecedent is?
Options- A. 36
- B. 16
- C. 48
- D. 72 Discuss
- 3. Divide 50 into two parts so that the sum of their reciprocals is 1/12?
Options- A. 20, 30
- B. 24, 26
- C. 28, 22
- D. 36, 14 Discuss
- 4. A number when divided by 6 is diminished by 40. The number is?
Options- A. 72
- B. 84
- C. 60
- D. 48 Discuss
- 5. The sum of three consecutive odd number is 57. The middle one is?
Options- A. 19
- B. 21
- C. 23
- D. 17 Discuss
- 6. A number gets reduced to its one-third, when 48 is subtracted from it. What is two-third of that number?
Options- A. 24
- B. 72
- C. 36
- D. None of these Discuss
- 7. 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
- 8. 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
- 9. 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
- 10. 469157 x 9999 =?
Options- A. 4586970843
- B. 4686970743
- C. 4691100843
- D. 4586870843 Discuss
Number System problems
Search Results
Correct Answer: 4
Explanation:
Let the number be N.
Then (N/2)2 - N = 48
? N2/4 - N = 48
?N2 - 4N-192= 0
? (N-16) (N+12) = 0
? N = 16
? The square root of the number is 4.
Correct Answer: 16
Explanation:
Let the antecedent be N.
Then, N/24 = 2/3
? N = (24 x 2) / 3
= 16
Correct Answer: 20, 30
Explanation:
Let the number be N and (50 - N)
Then, 1/N + 1/(50-N) = 1/12
? (50 - N + N) / {N(50 - N)} = 1/12
? N2 - 50N + 600 = 0
? N = 30 or 20
? the number are 20, 30
Correct Answer: 48
Explanation:
Let the required number be N,
Then, N/6 = N - 40
? N + 240 = 6N
? N = 48.
Correct Answer: 19
Explanation:
Let the requirement odd integers be N, N +2 and N + 4
Then, N + (N + 2) + (N + 4) = 57
? 3N = 51
? N = 17
? The integers are 17, 19, 21.
Correct Answer: None of these
Explanation:
Let the number be N.
Then, N - N/3 = 48
2N/3 = 48.
Correct Answer: Data inadequate
Explanation:
Here neither the remainder nor the dividend nor the second number is given. So, can't be determined.
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
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.
Correct Answer: 4691100843
Explanation:
469157 x 9999 = 469157 x (10000-1)
= 4691570000 - 469157
= 4691100843.
Comments
There are no comments.More in Aptitude:
Programming
Copyright ©CuriousTab. All rights reserved.