One-fourth of certain journey is covered at the rate of 25 k...

One-fourth of certain journey is covered at the rate of 25 km/h, one-third at the rate of 30 km/h and the rest at 50 km/h. Find the average speed for the whole journey.

Course Name: Quantitative Aptitude

1]
600/53 km/h
2]
1200/53 km/h
3]
1800/53 km/h
4]
1600/53 km/h
5]
None of these

Solution

No Solution Present Yet

Top 5 Similar Quiz - Based On AI&ML

Quiz Recommendation System API Link - https://fresherbell-quiz-api.herokuapp.com/fresherbell_quiz_api

Show entries

Search:

#	Quiz
1 Discuss	The average price of 10 books is Rs.12 while the average price of 8 of these books is Rs.11.75. Of the remaining two books, if the price of one book is 60% more than the price of the other, what is the price of each of these two books? 1] Rs. 5, Rs.7.50 2] Rs. 8, Rs. 12 3] Rs. 16, Rs. 10 4] Rs. 12, Rs. 14 Solution
10 Discuss	The arithmetic mean of the scores of a group of students in a test was 52. The brightest 20% of them secured a mean score of 80 and the dullest 25% a mean score of 31. The mean score of remaining 55% is- 1] 45 2] 50 3] 51.4 approx 4] 54.6 approx Solution
2 Discuss	An elevator can carry maximum of 16 passengers with an average weight of 80 kg. However, four boys more than the maximum carrying capacity of the elevator entered it making the average weight as 86 kg and overloading the elevator. What is the average weight of those four boys ? 1] 112 kg 2] 108 kg 3] 110 kg 4] 98 kg Solution
3 Discuss	The average of the ages of Sumit, Krishna and Rishabh is 43 and the average of the ages of Sumit, Rishabh and Rohit is 49. If Rohit is 54 years old, what is Krishna’s age? 1] 24 years 2] 36 years 3] 45 years 4] Cannot be determined 5] None of these Solution
4 Discuss	The average age of 40 students of class is 18 years. When 20 new students are admitted to the same class, the average age of the students of the class is increased by 6 months. The average age of newly admitted students is ? 1] 19 years 2] 19 years 6 months 3] 20 years 4] 20 years 6 months Solution
5 Discuss	David obtained 76, 65, 82, 67 and 85 marks (out of 100) in English, mathematics, physics, chemistry and biology. What are his average marks? 1] 65 2] 69 3] 75 4] None of these Solution
6 Discuss	The average age of a family of 10 members is 20 years. If the age of the youngest member of the family is 10 years, then the average age of the members of the family just before the birth of the youngest member was approximately. 1] 27.14 years 2] 12.5 years 3] 14.28 years 4] $11\frac{1}{9}$ years Solution
7 Discuss	In a set of three numbers, the average of first two numbers is 2, the average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers? 1] 2 2] 2.5 3] 3 4] 3.5 Solution
8 Discuss	The average monthly salary of 12 workers and 3 managers in a factory was Rs. 600. When one of the manager whose salary was Rs. 720, was replaced with a new manager, then the average salary of the team went down to 580. What is the salary of the new manager? 1] 640 2] 690 3] 420 4] 570 Solution
9 Discuss	The average age of 30 students is 9 years. If the age of their teacher is included, the average age becomes 10 years. The age of the teacher (in years) is : 1] 27 2] 31 3] 35 4] 40 Solution
#	Quiz

Showing 1 to 10 of 10 entries

Quiz Discussion

Solution

Top 5 Similar Quiz - Based On AI&ML

Solution

Solution

Solution

Solution

Solution

Solution

Solution

Solution

Solution

Solution

About Fresherbell

Important Links

Social Media