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Question 1 of 10

1. Question

1 points

Category: Quantitative Aptitude

Directions (Q1-5). There are five batches in a coaching institute i.e. A, B, C, D and E. The number of students in batch B are 80% more than that of batch A. Number of students in batch E are equal to the average number of students in batch A and batch B together. Number of students in batch D are 2/3 of number of students in batch C. Total number of students in batches A, B and E together are 525. Total number of students in batches B, C and D together are 470.

Number of students in batch B are:

Correct

Answer- 1) 225
Explanation-
Let the number of students in batch A are x.
Then, number of students in batch B = 180% of x = 1.8x
Number of students in batch E = (x + 1.8x)/2 = 2.8x/2 = 1.4x
We have,
x + 1.8x + 1.4x = 525
4.2x = 525, x = 125
Number of students in batch A = 125
Number of students in batch B = 1.8 × 125 = 225
Number of students in batch E = 1.4 × 125 = 175
Let the number of students in batch C are y.
Then, number of students in batch D = 2/3y
We have,
225 + y + 2/3y = 470
5y/3 = 245
y = 147
Number of students in batch C = 147
Number of students in batch D = 2/3 × 147 = 98

Incorrect

Answer- 1) 225
Explanation-
Let the number of students in batch A are x.
Then, number of students in batch B = 180% of x = 1.8x
Number of students in batch E = (x + 1.8x)/2 = 2.8x/2 = 1.4x
We have,
x + 1.8x + 1.4x = 525
4.2x = 525, x = 125
Number of students in batch A = 125
Number of students in batch B = 1.8 × 125 = 225
Number of students in batch E = 1.4 × 125 = 175
Let the number of students in batch C are y.
Then, number of students in batch D = 2/3y
We have,
225 + y + 2/3y = 470
5y/3 = 245
y = 147
Number of students in batch C = 147
Number of students in batch D = 2/3 × 147 = 98

Question 2 of 10

2. Question

1 points

Category: Quantitative Aptitude

Directions (Q1-5). There are five batches in a coaching institute i.e. A, B, C, D and E. The number of students in batch B are 80% more than that of batch A. Number of students in batch E are equal to the average number of students in batch A and batch B together. Number of students in batch D are 2/3 of number of students in batch C. Total number of students in batches A, B and E together are 525. Total number of students in batches B, C and D together are 470.

Number of students in batch D are how much less than the number of students in batch A?

Directions (Q1-5). There are five batches in a coaching institute i.e. A, B, C, D and E. The number of students in batch B are 80% more than that of batch A. Number of students in batch E are equal to the average number of students in batch A and batch B together. Number of students in batch D are 2/3 of number of students in batch C. Total number of students in batches A, B and E together are 525. Total number of students in batches B, C and D together are 470.

Number of students in batch E are:

Correct

Answer- 4) 175
Explanation-
Number of students in batch E = 175 (watch solution of Q1)

Incorrect

Answer- 4) 175
Explanation-
Number of students in batch E = 175 (watch solution of Q1)

Question 4 of 10

4. Question

1 points

Category: Quantitative Aptitude

Directions (Q1-5). There are five batches in a coaching institute i.e. A, B, C, D and E. The number of students in batch B are 80% more than that of batch A. Number of students in batch E are equal to the average number of students in batch A and batch B together. Number of students in batch D are 2/3 of number of students in batch C. Total number of students in batches A, B and E together are 525. Total number of students in batches B, C and D together are 470.

There is another batch F in which number of students are 66 more than the number of students in batch D. Total number of students in batches C and F together are:

Correct

Answer- 2) 311
Explanation-
Number of students in batch F = 98 + 66 = 164
Number of students in batch C = 147
Required number = 164 + 147 = 311

Incorrect

Answer- 2) 311
Explanation-
Number of students in batch F = 98 + 66 = 164
Number of students in batch C = 147
Required number = 164 + 147 = 311

Question 5 of 10

5. Question

1 points

Category: Quantitative Aptitude

Directions (Q1-5). There are five batches in a coaching institute i.e. A, B, C, D and E. The number of students in batch B are 80% more than that of batch A. Number of students in batch E are equal to the average number of students in batch A and batch B together. Number of students in batch D are 2/3 of number of students in batch C. Total number of students in batches A, B and E together are 525. Total number of students in batches B, C and D together are 470.

Only 1/6 of the students qualified in the exam in batches B, D and E together. Number of students who didn’t qualify the exam in these batches are:

Correct

Answer- 2) 415
Explanation-
Total number of students in batches B, D and E = 225 + 98 + 175 = 498
Number of students who didn’t qualify = 5/6 × 498 = 415

Incorrect

Answer- 2) 415
Explanation-
Total number of students in batches B, D and E = 225 + 98 + 175 = 498
Number of students who didn’t qualify = 5/6 × 498 = 415

Question 6 of 10

6. Question

1 points

Category: Quantitative Aptitude

Directions (Q6-10). The following bar graph shows the percentage of students who can speak English, Hindi and Punjabi in six schools i.e. A, B, C, D, E and F. A student can speak only one language.

Number of students who can speak Hindi in school B are 462. Number of students who can speak Punjabi in school B are how much more than that of students who can speak English?

Correct

Answer- 2) 44
Explanation-
Required number of students = 462/42 × (31 – 27) = 11 × 4 = 44

Incorrect

Answer- 2) 44
Explanation-
Required number of students = 462/42 × (31 – 27) = 11 × 4 = 44

Question 7 of 10

7. Question

1 points

Category: Quantitative Aptitude

Directions (Q6-10). The following bar graph shows the percentage of students who can speak English, Hindi and Punjabi in six schools i.e. A, B, C, D, E and F. A student can speak only one language.

What is the total number of students in school D if number of students who can speak English are 144 more than the number of students who can speak Punjabi?

Correct

Answer- 3) 1200
Explanation-
Total number of students in school D = 144/(45 – 33) × 100 = 1200

Incorrect

Answer- 3) 1200
Explanation-
Total number of students in school D = 144/(45 – 33) × 100 = 1200

Question 8 of 10

8. Question

1 points

Category: Quantitative Aptitude

Directions (Q6-10). The following bar graph shows the percentage of students who can speak English, Hindi and Punjabi in six schools i.e. A, B, C, D, E and F. A student can speak only one language.

Total number of students in school F are three times the number of students in school E. The number of students in school F who can speak Punjabi are approximately how much percent more than the number of students who can speak Hindi in school E?

Correct

Answer- 5) 18%
Explanation-
Let the number of students in school E = 100
Then, the number of students in school F = 3 × 100 = 300
Number of students who can speak Punjabi in school F = 13% of 300 = 39
Number of students who can speak Hindi in school E = 33% of 100 = 33
Required percentage = (39 – 33)/33 × 100 = 600/33 = 18% (approx.)

Incorrect

Answer- 5) 18%
Explanation-
Let the number of students in school E = 100
Then, the number of students in school F = 3 × 100 = 300
Number of students who can speak Punjabi in school F = 13% of 300 = 39
Number of students who can speak Hindi in school E = 33% of 100 = 33
Required percentage = (39 – 33)/33 × 100 = 600/33 = 18% (approx.)

Question 9 of 10

9. Question

1 points

Category: Quantitative Aptitude

Directions (Q6-10). The following bar graph shows the percentage of students who can speak English, Hindi and Punjabi in six schools i.e. A, B, C, D, E and F. A student can speak only one language.

Total number of students in school A are 1550. In school A, the number of students who can speak Hindi are how much more than the number of students who can speak English?

Correct

Answer- 1) 186
Explanation-
Required number of students = (48 – 36)% of 1550 = 12% of 1550 = 186

Incorrect

Answer- 1) 186
Explanation-
Required number of students = (48 – 36)% of 1550 = 12% of 1550 = 186

Question 10 of 10

10. Question

1 points

Category: Quantitative Aptitude

Directions (Q6-10). The following bar graph shows the percentage of students who can speak English, Hindi and Punjabi in six schools i.e. A, B, C, D, E and F. A student can speak only one language.

Average number of students who can speak Hindi and Punjabi in school C are 351. The number of students who can speak English in school C are:

Correct

Answer- 3) 198
Explanation-
Total number of students who can speak Hindi and Punjabi in school C = 351 × 2 = 702
Number of students who can speak English in school C = 702/(55 + 23) × 22 = 198

Incorrect

Answer- 3) 198
Explanation-
Total number of students who can speak Hindi and Punjabi in school C = 351 × 2 = 702
Number of students who can speak English in school C = 702/(55 + 23) × 22 = 198

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