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Question 1 of 10

1. Question

1 points

Category: Quantitative Aptitude

Directions (Q. 1-5) In the following number series, a wrong number is given. Find out that wrong number.

2 11 38 197 1172 8227 65806

Correct

Explanation:
The series is based on the following pattern:
11 = 2 × 3 + 5
38 = 11 × 4 – 6
197 = 38 × 5 + 7
1172 ≠ 197 × 6 – 8
1172 is wrong and it should be replaced by 197 × 6 – 8 = 1174

Incorrect

Explanation:
The series is based on the following pattern:
11 = 2 × 3 + 5
38 = 11 × 4 – 6
197 = 38 × 5 + 7
1172 ≠ 197 × 6 – 8
1172 is wrong and it should be replaced by 197 × 6 – 8 = 1174

Question 2 of 10

2. Question

1 points

Category: Quantitative Aptitude

Directions (Q. 1-5) In the following number series, a wrong number is given. Find out that wrong number.

16 19 21 30 46 71 107

Correct

Explanation:
The series is based on the following pattern:
107 – 71 = 36 = 62
71 – 46 = 25 = 52
46 – 30 = 16 = 42
30 – 21 = 9 = 32
21 – 19 = 2 ≠ 22
19 should be replaced by 17 for which 21 – 17 = 22

Incorrect

Explanation:
The series is based on the following pattern:
107 – 71 = 36 = 62
71 – 46 = 25 = 52
46 – 30 = 16 = 42
30 – 21 = 9 = 32
21 – 19 = 2 ≠ 22
19 should be replaced by 17 for which 21 – 17 = 22

Question 3 of 10

3. Question

1 points

Category: Quantitative Aptitude

Directions (Q. 1-5) In the following number series, a wrong number is given. Find out that wrong number.

7 9 16 25 41 68 107 173

Correct

Explanation:
The series is based on the following pattern:
16 = 9 + 7
25 = 16 + 9
41 = 25 + 16
68 ≠ 41 + 25

Incorrect

Explanation:
The series is based on the following pattern:
16 = 9 + 7
25 = 16 + 9
41 = 25 + 16
68 ≠ 41 + 25

Question 4 of 10

4. Question

1 points

Category: Quantitative Aptitude

Directions (Q. 1-5) In the following number series, a wrong number is given. Find out that wrong number.

4 2 3.5 7.5 26.25 118.125

Correct

Explanation:
The series is based on the following pattern:
4×0+4/2=2
2×1+2/2=3
3×2+3/2=7.5
7.5×3+7.5/2=26.25
26.25×4+26.25/2=118.125
Obviously, 3.5 is the wrong number which should be replaced by 3.

Incorrect

Explanation:
The series is based on the following pattern:
4×0+4/2=2
2×1+2/2=3
3×2+3/2=7.5
7.5×3+7.5/2=26.25
26.25×4+26.25/2=118.125
Obviously, 3.5 is the wrong number which should be replaced by 3.

Question 5 of 10

5. Question

1 points

Category: Quantitative Aptitude

Directions (Q. 1-5) In the following number series, a wrong number is given. Find out that wrong number.

16 4 2 1.5 1.75 1.875

Correct

Explanation:
The series is based on the following pattern:
16×0.25=4
4×0.50=2
2×0.75=1.5
1.5×1.0=1.5
1.5×1.25=1.875
Obviously, 1.75 is the wrong number which should be replaced by 1.5.

Incorrect

Explanation:
The series is based on the following pattern:
16×0.25=4
4×0.50=2
2×0.75=1.5
1.5×1.0=1.5
1.5×1.25=1.875
Obviously, 1.75 is the wrong number which should be replaced by 1.5.

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

Directions (6-10) In each question, two equations numbered I and II have been given. You have to solve both the equations and mark the appropriate option.

I. 2x^2 + 19x + 45 = 0
II. 2y^2 + 11y + 12 = 0

Correct

Explanation:
I. x = (-10/2), (-9/2)
x = -5, -4.5
II. y = (-8/2), (-3/2) y = -4, -1.5
Hence x < y

Incorrect

Explanation:
I. x = (-10/2), (-9/2)
x = -5, -4.5
II. y = (-8/2), (-3/2) y = -4, -1.5
Hence x < y

Question 7 of 10

7. Question

1 points

Category: Quantitative Aptitude

Directions (6-10) In each question, two equations numbered I and II have been given. You have to solve both the equations and mark the appropriate option.

I. 3x^2 – 13x + 12 = 0
II. 2y^2 – 15y + 28 = 0

Correct

Explanation:
I. x = 9/3, 4/3
x = 3, 4/3
II. y = 4, 3.5
Hence = x < y

Incorrect

Explanation:
I. x = 9/3, 4/3
x = 3, 4/3
II. y = 4, 3.5
Hence = x < y

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

Directions (6-10) In each question, two equations numbered I and II have been given. You have to solve both the equations and mark the appropriate option.

I. x^2 = 16
II. 2y^2 – 17y + 36 = 0

Correct

Explanation:
I. x = ±4
II. y = 9/2, 8/2
y = 4.5, 4
Hence = x ≤ y

Incorrect

Explanation:
I. x = ±4
II. y = 9/2, 8/2
y = 4.5, 4
Hence = x ≤ y

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

Directions (6-10) In each question, two equations numbered I and II have been given. You have to solve both the equations and mark the appropriate option.

I. 6x^2 + 19x + 15 = 0
II. 3y^2 + 11y + 10 = 0

Correct

Explanation:
I. x = -10/6, -9/6
x = -5/3, -3/2 = -1.66, -1.5
II. y = -6/3, -5/2 y = -2, -2.5
Hence x > y

Incorrect

Explanation:
I. x = -10/6, -9/6
x = -5/3, -3/2 = -1.66, -1.5
II. y = -6/3, -5/2 y = -2, -2.5
Hence x > y

Question 10 of 10

10. Question

1 points

Category: Quantitative Aptitude

Directions (6-10) In each question, two equations numbered I and II have been given. You have to solve both the equations and mark the appropriate option.

I. 2x^2 – 11x + 15 = 0
II. 2y^2 – 11y + 14 = 0

Correct

Explanation:
I.x = -6/2, -5/2
x = 3, 2.5
II. y = 7/2, 4/2
y = 3.5, 2
Hence relationship cannot be established.

Incorrect

Explanation:
I.x = -6/2, -5/2
x = 3, 2.5
II. y = 7/2, 4/2
y = 3.5, 2
Hence relationship cannot be established.