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- Question 1 of 10
##### 1. Question

1 pointsCategory: Quantitative Aptitude**Directions (Q1-5). The following table shows the downstream speed and upstream speed of a boat on different days of a week and bar graph shows the distance travelled by boat on those days (in km). Based on this information, answer the following questions.**

**Speed of boat in still water on Wednesday is how much more than that on Monday?**Correct**Answer- 4) 10 km/h**

Explanation-

Speed of boat in still water on Wednesday = (70 + 30)/2 = 50 km/h

Speed of boat in still water on Monday = (50 + 30)/2 = 40 km/h

Required difference = 50 – 40 = 10 km/hIncorrect**Answer- 4) 10 km/h**

Explanation-

Speed of boat in still water on Wednesday = (70 + 30)/2 = 50 km/h

Speed of boat in still water on Monday = (50 + 30)/2 = 40 km/h

Required difference = 50 – 40 = 10 km/h - Question 2 of 10
##### 2. Question

1 pointsCategory: Quantitative Aptitude**Directions (Q1-5). The following table shows the downstream speed and upstream speed of a boat on different days of a week and bar graph shows the distance travelled by boat on those days (in km). Based on this information, answer the following questions.**

**Total time taken by boat to travel both upstream and downstream together on Thursday is:**Correct**Answer- 3) 12 hours**

Explanation-

Required time = 378/54 + 180/36 = 7 + 5 = 12 hoursIncorrect**Answer- 3) 12 hours**

Explanation-

Required time = 378/54 + 180/36 = 7 + 5 = 12 hours - Question 3 of 10
##### 3. Question

1 pointsCategory: Quantitative Aptitude**Directions (Q1-5). The following table shows the downstream speed and upstream speed of a boat on different days of a week and bar graph shows the distance travelled by boat on those days (in km). Based on this information, answer the following questions.**

**What will be the time taken by boat to travel 175 km in still water on Tuesday?**Correct**Answer- 2) 3.5 hours**

Explanation-

Speed of the boat in still water on Tuesday = (60 + 40)/2 = 100/2 = 50 km/h

Required time = 175/50 = 3.5 hoursIncorrect**Answer- 2) 3.5 hours**

Explanation-

Speed of the boat in still water on Tuesday = (60 + 40)/2 = 100/2 = 50 km/h

Required time = 175/50 = 3.5 hours - Question 4 of 10
##### 4. Question

1 pointsCategory: Quantitative Aptitude

**Speed of the boat in still water on Saturday is the sum of speeds of boat in still water on Thursday and Friday and speed of stream on Saturday is sum of speed of streams on Monday and Wednesday. Time taken by the boat to travel 230 km upstream on Saturday is:**Correct**Answer- 5) 4.6 hours**

Explanation-

Speed of boat in still water on Saturday = (54 + 36)/2 + (45 + 25)/2 = 45 + 35 = 80 km/h

Speed of stream on Saturday = (50 – 30)/2 + (70 – 30)/2 = 10 + 20 = 30 km/h

Required time = 230/(80 – 30) = 230/50 = 4.6 hoursIncorrect**Answer- 5) 4.6 hours**

Explanation-

Speed of boat in still water on Saturday = (54 + 36)/2 + (45 + 25)/2 = 45 + 35 = 80 km/h

Speed of stream on Saturday = (50 – 30)/2 + (70 – 30)/2 = 10 + 20 = 30 km/h

Required time = 230/(80 – 30) = 230/50 = 4.6 hours - Question 5 of 10
##### 5. Question

1 pointsCategory: Quantitative Aptitude

**Speed of boat in still water on Friday is how much more than the speed of stream on the same day?**Correct**Answer- 1) 25 km/h**

Explanation-

Required difference = (45 + 25)/2 – (45 – 25)/2 = 35 – 10 = 25 km/hIncorrect**Answer- 1) 25 km/h**

Explanation-

Required difference = (45 + 25)/2 – (45 – 25)/2 = 35 – 10 = 25 km/h - Question 6 of 10
##### 6. Question

1 pointsCategory: Quantitative Aptitude**Directions (Q6-10)**. In a college there are 1800 students who are doing PG in any one of the five subjects i.e. Zoology, Botany, Mathematics, Physics and Chemistry. Ratio of number of boys to number of girls in the college is 11:7 respectively. 20% of the total number of boys study zoology and 18% of the total number of girls study zoology as well. Ratio of number of boys to girls who study botany is 16:9. 5% of the total number of boys study Mathematics and 22% of the total number of girls study Mathematics. Total number of students who study Physics are 510. Number of girls who study physics are 20% of the number of boys who study physics. Remaining 288 boys study Chemistry.**Number of girls who study chemistry are:**Correct**Answer- 4) 272**

Explanation-

Number of boys in the college = 1800/18 × 11 = 1100

Number of girls in the college = 1800/18 × 7 = 700

Number of boys who study zoology = 20% of 1100 = 220

Number of girls who study zoology = 18% of 700 = 126

Number of boys who study mathematics = 5% of 1100 = 55

Number of girls who study mathematics = 22% of 700 = 154

Number of boys who study physics = 510/120 × 100 = 425

Number of girls who study physics = 510 – 425 = 85

Number of boys who study chemistry = 288

Number of boys who study botany = 1100 – (220 + 55 + 425 + 288) = 112

Number of girls who study botany = 112/16 × 9 = 63

Number of girls who study chemistry = 700 – (126 + 154 + 85 + 63) = 272Incorrect**Answer- 4) 272**

Explanation-

Number of boys in the college = 1800/18 × 11 = 1100

Number of girls in the college = 1800/18 × 7 = 700

Number of boys who study zoology = 20% of 1100 = 220

Number of girls who study zoology = 18% of 700 = 126

Number of boys who study mathematics = 5% of 1100 = 55

Number of girls who study mathematics = 22% of 700 = 154

Number of boys who study physics = 510/120 × 100 = 425

Number of girls who study physics = 510 – 425 = 85

Number of boys who study chemistry = 288

Number of boys who study botany = 1100 – (220 + 55 + 425 + 288) = 112

Number of girls who study botany = 112/16 × 9 = 63

Number of girls who study chemistry = 700 – (126 + 154 + 85 + 63) = 272 - Question 7 of 10
##### 7. Question

1 pointsCategory: Quantitative Aptitude**Directions (Q6-10)**. In a college there are 1800 students who are doing PG in any one of the five subjects i.e. Zoology, Botany, Mathematics, Physics and Chemistry. Ratio of number of boys to number of girls in the college is 11:7 respectively. 20% of the total number of boys study zoology and 18% of the total number of girls study zoology as well. Ratio of number of boys to girls who study botany is 16:9. 5% of the total number of boys study Mathematics and 22% of the total number of girls study Mathematics. Total number of students who study Physics are 510. Number of girls who study physics are 20% of the number of boys who study physics. Remaining 288 boys study Chemistry.**Number of girls who study mathematics are how much less than the number of boys who study physics?**Correct**Answer- 2) 271**

Explanation-

Required difference = 425 – 154 = 271 (see the explanation of Q6)Incorrect**Answer- 2) 271**

Explanation-

Required difference = 425 – 154 = 271 (see the explanation of Q6) - Question 8 of 10
##### 8. Question

1 pointsCategory: Quantitative Aptitude**Directions (Q6-10)**. In a college there are 1800 students who are doing PG in any one of the five subjects i.e. Zoology, Botany, Mathematics, Physics and Chemistry. Ratio of number of boys to number of girls in the college is 11:7 respectively. 20% of the total number of boys study zoology and 18% of the total number of girls study zoology as well. Ratio of number of boys to girls who study botany is 16:9. 5% of the total number of boys study Mathematics and 22% of the total number of girls study Mathematics. Total number of students who study Physics are 510. Number of girls who study physics are 20% of the number of boys who study physics. Remaining 288 boys study Chemistry.**Ratio of the number of boys who study zoology to the number of boys who study botany respectively is:**Correct**Answer- 3) 55:28**

Explanation-

Required ratio = 220/112 = 55:28Incorrect**Answer- 3) 55:28**

Explanation-

Required ratio = 220/112 = 55:28 - Question 9 of 10
##### 9. Question

1 pointsCategory: Quantitative Aptitude**Directions (Q6-10)**. In a college there are 1800 students who are doing PG in any one of the five subjects i.e. Zoology, Botany, Mathematics, Physics and Chemistry. Ratio of number of boys to number of girls in the college is 11:7 respectively. 20% of the total number of boys study zoology and 18% of the total number of girls study zoology as well. Ratio of number of boys to girls who study botany is 16:9. 5% of the total number of boys study Mathematics and 22% of the total number of girls study Mathematics. Total number of students who study Physics are 510. Number of girls who study physics are 20% of the number of boys who study physics. Remaining 288 boys study Chemistry.**Approximately how much percent of the students study mathematics out of total number of students in the college?**Correct**Answer- 3) 12%**

Explanation-

Total number of students who study mathematics = 55 + 154 = 209

Required percentage = 209/1800 × 100 = 12% (approx.)Incorrect**Answer- 3) 12%**

Explanation-

Total number of students who study mathematics = 55 + 154 = 209

Required percentage = 209/1800 × 100 = 12% (approx.) - Question 10 of 10
##### 10. Question

1 pointsCategory: Quantitative Aptitude**Directions (Q6-10)**. In a college there are 1800 students who are doing PG in any one of the five subjects i.e. Zoology, Botany, Mathematics, Physics and Chemistry. Ratio of number of boys to number of girls in the college is 11:7 respectively. 20% of the total number of boys study zoology and 18% of the total number of girls study zoology as well. Ratio of number of boys to girls who study botany is 16:9. 5% of the total number of boys study Mathematics and 22% of the total number of girls study Mathematics. Total number of students who study Physics are 510. Number of girls who study physics are 20% of the number of boys who study physics. Remaining 288 boys study Chemistry.**If the number of girls who study zoology are somehow increased by 50%, then the number of girls who study zoology will be how much percent more than the number of girls who study botany?**Correct**Answer- 4) 200%**

Explanation-

Number of girls who study zoology = 150% of 126 = 1.5 × 126 = 189

Required percentage = (189 – 63)/63 × 100 = 200%Incorrect**Answer- 4) 200%**

Explanation-

Number of girls who study zoology = 150% of 126 = 1.5 × 126 = 189

Required percentage = (189 – 63)/63 × 100 = 200%

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