More challenging rate problems involve multiple rates:
Average Rates: An average rate problem will contain two separate rates and will ask for their average. On this type of problem, do not take the average of the two separate rates - —this will be a trap answer. Instead, use the Average Rate formula below to answer the question:
Combined Rates or Work: Some rate problems will provide the productivity rates of two workers, machines, etc., and will ask for their combined productivity. For these types of problems, use the following work formula:
The Work Formula:
When solving combined rate problems, pay close attention to the proportions of the job that each worker is able to complete, and also to the proportion of the job for which you must solve.
Next to display next topic in the chapter.
Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.
Learn techniques how to crack quantitative comparison section
Easily crack the most logical section of the GMAT
Announcements of Admission and Employment Tests
Find a comprehensive list of major ...
Admission detail for admission in P ...
How you can get study visa to Pakis ...
A list of Essays on International I ...
Read about how you can join Pakista ...
Know what is GRE - Geeneral test an ...
A list of Engineering colleges and ...
National University of Science and ...