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- Question
What is the place value of 0 in 103?
Options- A. 0
- B. 100
- C. 10
- D. 103
- Correct Answer
- 0
ExplanationThe place value of 0 in 103 is given by the product of digits place in the number and the digit.
Here 0 is in 10's place in 103
=> 0 x 10 = 0.
Hence, The place value of 0 in 103 = 0.
- 1. There are 6561 balls are there out of them 1 is heavy. Find the minimum number of times the balls have to be weighted for finding out the heavy ball ?
Options- A. 2414
- B. 204
- C. 87
- D. 8 Discuss
- 2. If the positions of the first and the fifth digits of the number 14278359 are interchanged, similarly the positions of the second and the sixth digits are interchanged and so on, then which of the following will be the second digit from the right end after the rearrangement ?
Options- A. 5
- B. 2
- C. 7
- D. 4 Discuss
- 3. Negative divided by Negative
Options- A. -ve
- B. +ve
- C. 0
- D. Can't be determined Discuss
- 4. Rajitha has a calculator, which has 10 digits. She want to clean the calculator by removing all the keys and while reassembling it, she interchanged the locations of 3 pairs of keys. For example, if she placed the key ?3? in the place of the key ?7?, she placed the key ?7? only in the place of the key ?3? and not any other key. All keys that were interchanged corresponded only to numbers. Later, she input some calculations and obtained outputs as provided in the table below. The input is shown in terms of the keys that Kavitapressed, while the output is the output displayed by the calculator. Output: 1. 95 + 84=128 2. 128 + 64=195 3. 912 + 43=942 4. 178 + 19=192 Question : Which of the following pair of digits is unchanged ?
Options- A. 9, 0, 3
- B. 1, 3, 8
- C. 7, 0, 1
- D. 2, 4, 1 Discuss
- 5. 0 divided by 0
Options- A. 0
- B. 1
- C. Undefined
- D. Indeterminate Discuss
- Let us think by this analogy that,
- Again, another analogy,(from limiting concept of 1/0 = infinity)
- Again, another analogy,
- 6. Aptitude tests are designed to measure
Options- A. General reasoning
- B. Perceptual speed
- C. Verbal comprehension
- D. All of the above Discuss
- 7. If 9 * 2 * 5 = 23 and 1 * 4 * 8 = 29, then 1 * 6 * 3 = ?
Options- A. 19
- B. 21
- C. 31
- D. 39 Discuss
- 8. Which is called 'OFF State' in binary?
Options- A. 4
- B. 3
- C. 2
- D. 1 Discuss
- 9. How much does a gallon of water weigh?
Options- A. 2.741 kgs
- B. 2.956 kgs
- C. 3.418 kgs
- D. 3.785 kgs Discuss
- 10. What is the smallest number of ducks that could swim in this formation - two ducks in front of a duck, two ducks behind a duck and a duck between two ducks ?
Options- A. 3
- B. 5
- C. 7
- D. 9 Discuss
Arithmetic Reasoning problems
Search Results
Correct Answer: 8
Explanation:
Suppose there are 9 balls
Let us give name to each ball B1 B2 B3 B4 B5 B6 B7 B8 B9
Now we will divide all the balls into 3 groups.
Group1 - B1 B2 B3
Group2 - B4 B5 B6
Group3 - B7 B8 B9
Step1 - Now weigh any two groups. Let's assume we choose Group1 on left side of the scale and Group2 on the right side.
So now when we weigh these two groups we can get 3 outcomes.
Weighing scale tilts on left - Group1 has a heavy ball.
Weighing scale tilts on right - Group2 has a heavy ball.
Weighing scale remains balanced - Group3 has a heavy ball.
Lets assume we got the outcome as 3. i.e Group 3 has a heavy ball.
Step2 - Now weigh any two balls from Group3. Lets assume we keep B7 on left side of the scale and B8 on right side.
So now when we weigh these two balls we can get 3 outcomes.
Weighing scale tilts on left - B7 is the heavy ball.
Weighing scale tilts on right - B8 is the heavy ball.
Weighing scale remains balanced - B9 is the heavy ball.
The conclusion we get from this Problem is that each time weigh. We element 2/3 of the balls.
As we came to conclusion that Group3 has the heavy ball from Step1, we remove 6 balls from the equation i.e (2/3) of 9.
Simillarly we do the ame thing for the Step2.
Now going with this conclusion. We have 6561 balls.
Step - 1
Divided into 3 groups
Group1 - 2187Balls
Group2 - 2187Balls
Group3 - 2187Balls
Taking the similar steps as we did in the above example, we come to the conclusion that Group1 has the heavy ball.
Step - 2
Divided into 3 groups
Group1 - 729Balls
Group2 - 729Balls
Group3 - 729Balls
Taking the similar steps as we did in the above example, we come to the conclusion that Group1 has the heavy ball.
Step - 3
Divided into 3 groups
Group1 - 243Balls
Group2 - 243Balls
Group3 - 243Balls
Taking the similar steps as we did in the above example, we come to the conclusion that Group1 has the heavy ball.
Step - 4
Divided into 3 groups
Group1 - 81Balls
Group2 - 81Balls
Group3 - 81Balls
Taking the similar steps as we did in the above example, we come to the conclusion that Group1 has the heavy ball.
Step - 5
Divided into 3 groups
Group1 - 27Balls
Group2 - 27Balls
Group3 - 27Balls
Taking the similar steps as we did in the above example, we come to the conclusion that Group1 has the heavy ball.
Step - 6
Divided into 3 groups
Group1 - 9Balls
Group2 - 9Balls
Group3 - 9Balls
Taking the similar steps as we did in the above example, we come to the conclusion that Group1 has the heavy ball.
Step - 7
Divided into 3 groups
Group1 - 3Balls
Group2 - 3Balls
Group3 - 3Balls
Taking the similar steps as we did in the above example, we come to the conclusion that Group1 has the heavy ball.
Step - 8
So now when we weigh 2 balls out of 3 we can get 3 outcomes.
Weighing scale tilts on left - left side placed is the heavy ball.
Weighing scale tilts on right - right side placed is the heavy ball.
Weighing scale remains balanced - remaining ball is the heavy ball.
So the general answer to this question is, it is always multiple of 3 steps.
For 9 balls = 9. therefore 2 steps
For 6561 balls = 6561 therefore 8 steps
Correct Answer: 2
Explanation:
Given number is 14278359
As given 1st and 5th digits, 2nd & 6th, 3rd & 7th and 4th & 8th digits are to to be interchanged.
Therfore, the rearranged number is 83591427
Then, the second digit from the right end is 2.
Correct Answer: +ve
Explanation:
We know the Mathematical rules that
Correct Answer: 7, 0, 1
Explanation:
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 0 | 1 | 4 | 8 | 2 | 6 | 5 | 7 | 3 | 9 |
Here pairs interchanged are
2, 4
3, 8
5, 6
Unchanged are 0, 1, 7, 9
Correct Answer: Indeterminate
Explanation:
Indeterminate are those,which mathematics can?t determine.
Because we don?t actually know which one is the exact answer for this due to having lots of results for this.
Explanation::
0 / 1 = 0
0 / 2 = 0
????
???..
we can say 0 / n = 0 from this we can write, 0/0 = 0
1 / 0 = +? or -?
2 /0 = +? or -?
???
.??.
we can say 0 / 0 = ?
1 / 1 = 1
2/2 = 1
.??..
???..
we can say, 0/0 = 1
Now, you see it?s confusing. Every analog is mathematically correct then which one is the right answer for 0/0. Therefore Mathematics can?t determine this fact.
So, 0/0 is indeterminate.
Correct Answer: All of the above
Explanation:
Aptitude tests measures an individual's level of competency to perform a certain type of task and their mental and physical potentials in dealing different situations. These tests include General reasoning, Verbal comprehension, Perceptual speed and numerical operations.
Correct Answer: 19
Correct Answer: 1
Explanation:
'0' is called OFF State in Binary...
Correct Answer: 3.785 kgs
Explanation:
1 Gallon = 3.785 kgs
Gallon is a unit of measurement of liquid.
We know that 1 gallon = 3.785 liters
But we know that,
1 cubic meter = 1000 lit or 1000 kgs
=> 1 lit = 1 kg
Hence, 1 gallon = 3.785 lit = 3.785 kgs.
Correct Answer: 3
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