Problems on Time and Work - III - Grade 8 - Mathematics - kwizNET Math/Science/English Homeschool/Afterschool/Tutoring Lessons/Worksheets/Quizzes/Trivia

Grade 8 - Mathematics 9.10 Problems on Time and Work - III

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

Q 1: 10 men and 15 women can do a piece of work in 6 days. 12 men and 27 women can do the same work in 4 days. How long will 6 men and 11 women take to do it. 11 days 10 days 9 days 8 days

Q 2: Harry can construct 2/3 of a wall in 40 days. Eric can construct 1/2 of the wall in 75 days. Adam can construct 3/4 of the wall in 75 days. If all the three work together, in how many days will they construct 5/6 of the wall. 25 days 22 days 23 days 20 days

Q 3: 8 men and 14 women can do a piece of work in 8 days. 10 men and 20 women can do the same work in 6 days. How long will 3 men and 11 women take to do it. 17 days 16 days 15 days 18 days

Q 4: A can do a piece of work in 8 1/2 days. A works for 2 days B joins A. They work for one day, the capacity of B is double the capacity of A. On the 4th day the work is completed by A and B with the help of a boy. In how many days the boy can do the work. 18 days 17 days 16 days 15 days

Q 5: John, Peter and Matt can do a piece of work in 10 days. Peter and Matt can do it in 20 days. Matt alone can do it in 30 days. In how many days John and Matt can do the work together. 10 days 13 days 11 days 12 days

Q 6: 8 men and 12 women can do a piece of work in 9 days. 10 men and 20 women can do the same work in 6 days. How long will 5 men and 15 women take to do it. 10 days 9 days 13 days 11 days

Question 7: This question is available to subscribers only!

Question 8: This question is available to subscribers only!