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- Question
Thrice the square of a natural number decreased by 4 times the number is equal to 50 more than the number. The number is ?
Options- A. 5
- B. 4
- C. 7
- D. 6
- Correct Answer
- 5
ExplanationLet the number be x. Then,
- 4x = x + 50
- 5x - 50 = 0
(3x + 10)(x - 5) = 0
x = 5
- 1. The sum of the interior angles of a polygon is twice the sum of its exterior angles. How many sides does the polygon have ?
Options- A. 6
- B. 4
- C. 5
- D. 7 Discuss
- 2. In a class of students, if 1 is absent rest of people can be divided into 6 equal parts and if 2 are absent rest of them are divided into 7 equal parts, how many students are present in the class ?
Options- A. 28
- B. 19
- C. 57
- D. 37 Discuss
- 3. How many number of weights do you need to weight 31 kg of Rice if you have one kg of weight stone ?
Options- A. 3
- B. 5
- C. 7
- D. 9 Discuss
- 4. If two line pa + b = 2 and 3a + b = 4 are parallel to each other, then what is the value of p ?
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 5. In a parking lot there are two types of vehicles, two wheelers and four wheelers. The total number of the vehicles in the parking lot is 200. When the number of the wheels of all the vehicles is counted it is counted to be 580. Find the total number of the four wheeler vehicles in the parking lot ?
Options- A. 110
- B. 90
- C. 100
- D. 180 Discuss
- 6. 18 tens 20 ones =
Options- A. 1820
- B. 180
- C. 200
- D. 160 Discuss
- 7. Lami's theorem is applicable only for
Options- A. Non-Concurrent forces
- B. Coplanar forces
- C. Coplanar and concurrent forces
- D. Any type of forces Discuss
- 8. 7/9 of the people present in a hall are sitting in 9/13 of the chairs available and the rest are standing. If there are 28 empty 9 sitting chairs, how many chairs would have been still empty if everyone in the hall was sitting?
Options- A. 15
- B. 12
- C. 18
- D. 10 Discuss
- 9. In the given numbers, if in each number first digit is replaced by the third digit, second digit is replaced by the first digit and third digit is replaced by the second digit then which number will be the biggest ? 653 749 872 933 541
Options- A. 933
- B. 872
- C. 749
- D. 653 Discuss
- 10. 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,
Arithmetic Reasoning problems
Search Results
Correct Answer: 6
Explanation:
We know that
Sum of Interior angles of Polygon = 180(n-2)
Sum of Exterior angles of Polygon = 360
so 180(n-2)=2x360
Therefore, by solving we get n=6 sides.
Correct Answer: 37
Explanation:
Let the number of students in the class be 'x'.
Given if 1 is absent rest of people can be divided into 6 equal parts i.e (x-1)/6.........(1)
And given if 2 are absent rest of people can be divided into 7 equal parts i.e (x-2)/7.....(2)
From (1)&(2), we get
x-1/6 = ((x-2)/7) + 1
=> x = 37.
Correct Answer: 5
Explanation:
There are total 5 ways.
we have only one kg of weight so,
2kg = 1kg + 1kg
4kg = 1 + 2 + 1
8kg = 1 + 2 + 4 + 1
16kg = 1 + 2 + 4 + 8 + 1
31kg = 1 + 2 + 4 + 8 + 16
So 5 weights are needed.
Correct Answer: 3
Explanation:
Given two lines are parallel
pa+b=2
b=-pa+2..........(1)
3a+b=4
b=-3a+4 ...........(2)
m1 = -p
m2= -3
The condition for the two lines to be parallel is m1=m2
p = 3
Correct Answer: 90
Explanation:
Let number of 2 wheelers be 'x'
and 4 wheelers be 'y'
Given total number of vehicles = 200
i.e, x + y = 200 ....(1)
Given total number of wheels = 580
i.e, 2x + 4y = 580 ...(2)
By solving (1)&(2), we get
y = 90
=> x = 110
Therefore, number of two wheelers = 110
number of four wheelers = 90
Correct Answer: 200
Explanation:
18 tens 20 ones, the given stateent can be split into
18 tens = 18 x 10 = 180
20 ones = 20 x 1 = 20
Then add both => 180 + 20 = 200
Hence, 18 tens 20 ones = 200.
Correct Answer: Coplanar and concurrent forces
Explanation:
The Lami's theorem states that " If three forces coplanar and concurrent forces acting on a particle keep it in equilibrium, then each force is proportional to the sine of the angle between the other two and the constant of proportionality is the same." This theorem is derived from the Sine rule of triangles.
Correct Answer: 10
Correct Answer: 749
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.
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