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- Question
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
- Correct Answer
- 5
ExplanationBy 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. - 1. Find the next number in the series 141,137,146,130,155,119,...
Options- A. 147
- B. 168
- C. 162
- D. 182 Discuss
- 2. 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
- 3. What is the remainder when 1523+2323 is divided by 19 ?
Options- A. 4
- B. 3
- C. 1
- D. 0 Discuss
- 4. 3131×31-27 =?
Options- A. 961 x 861
- B. 961 x 961
- C. 961 x 2
- D. 29791 Discuss
- 5. The product of a number and its multiplicative inverse is
Options- A. 1
- B. 0
- C. -1
- D. Infinity Discuss
- 6. 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
- 7. Which expression is equivalent to i233 ?
Options- A. i
- B. 1
- C. -i
- D. -1 Discuss
- 8. 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 Discuss
- 9. 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
- 10. 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
Numbers problems
Search Results
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: 0
Explanation:
The remainder on dividing by 19 will be = 0.
Correct Answer: 961 x 961
Explanation:
We know that
= = 961 x 961.
Correct Answer: 1
Explanation:
The mutiplicative inverse of a number is nothing but a reciprocal of a number.
Now, the product of a number and its multiplicative inverse is always equal to 1.
For example :
Let the number be 15
Multiplicative inverse of 15 = 1/15
The product of a number and its multiplicative inverse is = 15 x 1/15 = 1.
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: i
Explanation:
We know that,
Correct Answer: 6 and 12 both
Explanation:
, which is always divisible by 6 and 12 both, since n(n+1) is always even.
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
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