Home › CAT › Quantitative Aptitude › Time and Work › Pete needs 10 hours and Alicia 8 hours for the s…
Pete needs 10 hours and Alicia 8 hours for the same room. Together their hourly share of the job is:
ANine fortieths
BNine fiftieths
CNine sixtieths
DNine eightieths
Answer & Solution
Correct answer: A. Nine fortieths
1. Add one tenth and one eighth.
2. The common denominator is 40.
3. Together they do nine fortieths an hour.
_Source: OpenStax Elementary Algebra, Chapter 8, Solve Uniform Motion and Work Applications._
Related questions
Those two workers, at that combined rate, finish the whole job in:A worker finishing in 5 hours and another in 20 hours together do what share of the job eaConverting two fifths of an hour into minutes gives:In work problems, the parts of the job done by each worker in one hour add up to:Flying into that same 30 mph wind, the same plane's ground speed would be:A plane's ground speed with a tailwind of 30 mph, if the plane itself flies at 150 mph, isOn that drive, Tony's interstate speed was:Tony drives 4 hours in all, 208 miles on the interstate and 40 on country roads, going 15