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- Question
If n is natural number , then 6n2+6n is always divisible by :
Options- A. 6 only
- B. 6 and 12 both
- C. 12 only
- D. by 18 only
- Correct Answer
- 6 and 12 both
Explanation, which is always divisible by 6 and 12 both, since n(n+1) is always even.
- 1. Which expression is equivalent to i233 ?
Options- A. i
- B. 1
- C. -i
- D. -1 Discuss
- 2. In a triangle ABC, angle 'a' is the smallest one & A+7B = 112. Find the range of value 'c' ?
Options- A. 138 to 164
- B. 125 to 147
- C. 148 to 158
- D. 152 to 164 Discuss
- 3. What is the smallest number by which 2880 must be divided in order to make it into a perfect square ?
Options- A. 2
- B. 3
- C. 4
- D. 5 Discuss
- 4. Find the next number in the series 141,137,146,130,155,119,...
Options- A. 147
- B. 168
- C. 162
- D. 182 Discuss
- 5. Find the next number in the series 2, 3, 4, 8, 9, 10, 11, 16, 17, 18, 19, 20,...
Options- A. 27
- B. 26
- C. 24
- D. 25 Discuss
- 6. Courier charges for packages to a certain destination are 65 cents for the first 250 grams and 10 cents for each additional 100 grams or part thereof. What could be the weight in grams of a package for which the charge is $1.55 ?
Options- A. 1155
- B. 1145
- C. 1040
- D. None Discuss
- 7. A number divided by 296 leaves the remainder 75. If the same number is divided by 37, what will be the remainder ?
Options- A. 0
- B. 1
- C. 11
- D. 8 Discuss
- 8. The sum of the digits of a two-digits number is 10,while when the digits are reversed, the number decreases by 54. Find the changed number ?
Options- A. 28
- B. 19
- C. 37
- D. 46 Discuss
- 9. What is the value of 4 in 475?
Options- A. 4
- B. 400
- C. 475
- D. 40 Discuss
- 10. 3x + y = 19 and x + 3y = 1. Find the value of 2x + 2y
Options- A. 20
- B. 18
- C. 11
- D. 10 Discuss
Numbers problems
Search Results
Correct Answer: i
Explanation:
We know that,
Correct Answer: 152 to 164
Explanation:
A+7B=112
it is clear that A = 14, then it becomes A>=B, but A is smallest angle) given
so, range of A is 0.0001 to 13.9999 ( I am taking upto 4 decimal places)
so, range of B becomes 14 to 16 ( after rounding off to 4 decimal places)
so, range of C becomes 152 to 164 ( after rounding off to 4 decimal places)
Correct Answer: 5
Explanation:
By trial and error method, we get
2880/3 = 960 is not a perfect square
2880/4 = 720 is not a perfect square
2880/5 = 576 which is perfect square of 24
Hence, 5 is the least number by which 2880 must be divided in order to make it into a perfect square.
Correct Answer: 168
Explanation:
The pattern is -4, +9,-16, +25, -36
The next number=119+49=168
Correct Answer: 26
Explanation:
The pattern is three consecutive numbers and then three consecutive numbers missing.Then four consecutive numbers and then four consecutive numbers missing.Then five consecutive numbers and then five consecutive numbers missing.
The next number=20+6=26
Correct Answer: 1145
Explanation:
The weight will be 250g plus (1.55 - 0.65)/0.10 units of 100g
250 + 900 = 1150
This is the maximum weight that can be sent at that price. But, weights exceeding
250 + 800 will also get charged this amount (that is what the ?part thereof? implies).
Hence a package weighing 1145 will be charged $1145
Correct Answer: 1
Correct Answer: 28
Explanation:
Let the original number is 82 i.e 8 + 2 = 10 and when the digits are reversed i.e 28
The difference is 82 - 28 = 54 i.e, the number is decreased by 54.
Correct Answer: 400
Explanation:
The value of 4 in 475 means the place value of 4 in 475 and not its face value. Face value means the digit itself though it is at any place in the given number. But place value means the value of digit in its place in the given number.
Here the place value of 4 in 475 can be determined by as 4 is in 100's place in 475.
Hence, the place value of 4 in 475 is 4x100 = 400.
Correct Answer: 10
Explanation:
To solve a pair of simultaneous equations such as those given we can add or subtract them.
Adding we get 4x + 4y = 20
Therefore 2x + 2y = 10
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