Grade 8 - Mathematics 9.9 Word Problems on Time and Work - II

Directions: Solve the following problems. Also write at least 5 examples of your own.

Q 1: Matt and Peter can do together a piece of work in 20 days. After they have worked together for 12 days Matt stops and Peter completes the remaining work in 10 days. In how many days Peter complete the work separately. 30days 25days 20days 15days

Q 2: Two taps can fill a tub in 24min. and 32min. separately. Another tap can empty the full tub in 16min. If they are opened together at the same time when will the tub be full. 86min. 96min. 100min. 46min.

Q 3: Kate and Cathy can do a piece of work in 30days and 20days respectively. After Kate has worked alone for 5days Cathy join her, both of them complete the work. Find the number of days Kate and Cathy have worked together. 8days 7days 10days 6days

Q 4: Two taps can fill a tub in 5min. and 7min. respectively. A pipe can empty it in 3min. If all the three are kept open simultaneously when will the tub be full. 95min. 110min. 105min. 100min.

Q 5: Micheal and Adam can do together a piece of work in 20 days. After they have worked together for 12 days Micheal stops and Adam completes the remaining work in 10 days. In how many days Micheal complete the work separately. 90days 80days 70days 100days

Q 6: Two taps can fill water tank in 9min. and 12min. respectively. In what time the tank will be full, if second tap starts working 2min. after first started working. 6min. 8min. 10min. 5min.

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Question 8: This question is available to subscribers only!