Discussion
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- Question
Which of the numbers given below is NOT rational?
Options- A. 3?8
- B. 3?64
- C. ?64
- D. ?8
- Correct Answer
- ?8
- 1. What should be the missing digit so that the number 275_476 becomes exactly divisible by 11?
Options- A. 6
- B. 4
- C. 2
- D. 3 Discuss
- 2. The average of 8 consecutive integers is 23/2. What is the average of first three integers?
Options- A. 9
- B. 19/2
- C. 8
- D. 10 Discuss
- 3. The average of 3 consecutive even numbers is A. If next 5 even numbers are added, then what is the average of these 8 numbers?
Options- A. A + 3
- B. A + 4
- C. A + 5
- D. A + 7 Discuss
- 4. x = y - (50/y), where x and y are both > 0 If the value of y is doubled in the equation above, the value of x will
Options- A. decrease
- B. stay the same
- C. increase four fold
- D. increase to more than double Discuss
- 5. For how many integer values of n will the value of the expression 4n + 7 be an integer greater than 1 and less than 200?
Options- A. 48
- B. 49
- C. 50
- D. 51 Discuss
- 6. 30% of a number exceeds 25% of the same number by 27. What is the value of the number?
Options- A. 540
- B. 270
- C. 108
- D. 90 Discuss
- 7. If the square of sum of three positive consecutive natural numbers exceeds the sum of their squares by 292, then what is the largest of the three numbers?
Options- A. 5
- B. 6
- C. 7
- D. 8 Discuss
- 8. What is 0.53 + 0.53 equal to ?
Options- A. 1.068
- B. 1.072
- C. 1.082
- D. 1.096 Discuss
- 9. What is the quotient when 1359 is divided by 48?
Options- A. 29
- B. 31
- C. 30
- D. 28 Discuss
- 10. If 49 is subtracted from the square of a number, then the result obtained is 576. What is the number?
Options- A. 24
- B. 25
- C. 23
- D. 27 Discuss
Numbers problems
Search Results
Correct Answer: 3
Correct Answer: 9
Correct Answer: A + 5
Correct Answer: increase to more than double
Explanation:
The best approach is to pick a number that satisfies the rules that x and y are greater than 0. So for example you could choose 25 for y.
The value of x before doubling is then 25 - 50/25 = 23
The value after doubling y will be 50 - 50/50 = 49, which is more than double.
Correct Answer: 50
Explanation:
1 < 4n + 7 < 200
n can be 0, or -1
n cannot be -2 or any other negative integer or the expression 4n + 7 will be less than1.
The largest value for n will be an integer < (200 - 7) /4
193/4 = 48.25, hence 48
The number of integers between -1 and 48 inclusive is 50
Correct Answer: 540
Correct Answer: 8
Correct Answer: 1.068
Correct Answer: 28
Correct Answer: 25
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