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- Question
- The number of all prime numbers less than 40 is ...
Options- A. 15
- B. 18
- C. 12
- D. 17
- Correct Answer
- 12
ExplanationPrime number less than 40 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37
? The number of all prime numbers less than 40 = 12. - 1. What is the remainder in the expression 29 18? 26
Options- A. 29
- B. 26
- C. 18
- D. 0 Discuss
- 2. When 1? 7 of the number is subtracted from the number itself, it gives the same value as the sum of all the angles of a triangle. What is the number?
Options- A. 224
- B. 210
- C. 140
- D. 350 Discuss
- 3. What is the least number must be added to 1057 to get a number exactly divisible by 23?
Options- A. 1
- B. 3
- C. 2
- D. 4 Discuss
- 4. The product of a number and the first whole number is equal to
Options- A. 1
- B. 2
- C. 3
- D. 0 Discuss
- 5. What is the place value of '6' in the number 4562304?
Options- A. Thousand
- B. Hundred
- C. Ten Thousand
- D. Lakh Discuss
- 6. The product of two consecutive number odd number is 6723. What is the greater number?
Options- A. 89
- B. 85
- C. 91
- D. 83 Discuss
- 7. The sum of 4 consecutive even number is 284. What would be the smallest number?
Options- A. 72
- B. 74
- C. 68
- D. 66 Discuss
- 8. In the year 2011, Shantanu gets a total of 3832.5 Rupee as his pocket allowence. Find his pocket allowence per day.
Options- A. 9.5 Rupees
- B. 10.5 Rupees
- C. 12.5 Rupees
- D. 11.5 Rupees Discuss
- 9. The number of prime numbers between 0 and 50 is
Options- A. 13
- B. 14
- C. 15
- D. 16 Discuss
- 10. How many integers from 1 to 100 exist such that each is divisible by 5 and also has 5 as a digit?
Options- A. 10
- B. 11
- C. 12
- D. 20 Discuss
Number System problems
Search Results
Correct Answer: 18
Explanation:
It is clear from expression is that remainder is 18
Correct Answer: 210
Explanation:
Let number be the x.
According to the equation , x - x?7 = 180
? 6x?7 = 180
? x = 210
Correct Answer: 1
Explanation:
Correct Answer: 0
Explanation:
First whole number is 0 and when any number is multiplied with zero, then result is zero.
Correct Answer: Ten Thousand
Explanation:
Position value of 6 = 10000
Correct Answer: 83
Explanation:
Let the two consecutive odd number be (x + 1) and (x + 3).
According to question (x + 1) (x + 3) = 6723
? x2 + 3x + x + 3 = 6723
? x2 + 4x + 3 = 6723
? x2 + 4x - 6720 = 0
? x2 + 84x - 80x - 6720 = 0
? ( x - 80 )( x + 84 )= 0
? x = 80, (x ? -84)
Hence, the greater number = 80 + 3 = 83
Correct Answer: 68
Explanation:
Let four consecutive even numbers are x, x+2, x+4, x+6.
According to the question
? x + x+2 + x+4 + x+6 = 284
? 4x + 12 = 284
? 4x = 272
? x = 272 / 4 = 68
Correct Answer: 10.5 Rupees
Explanation:
Allowance per day = total allowance / number of days in year
= 3832.5 / 365
= 10.5 Rupees
Correct Answer: 15
Explanation:
prime numbers between 0 and 50 are 2 3 5 7 11 13 17 19 23 29 31 37 41 43 and 47
? required number of prime number is 15
Correct Answer: 11
Explanation:
5,15,25,35,40,50,55,65,75,85,95
So there are total 11 such type of numbers.
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