exam
Maths Puzzle
Numerical Ability
Thomas can do a job in 4 hours. Julia can do the same job in 6 hours. How many hours will it take the two of them to do the job if they both work together?
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exam Other Question
Solve the following system of linear inequalities by graphing. x + 2y < 3, 2x – 3y < 6
B4
Find the total surface area and volume of each solid object. Round to the three significant digit.
the object is a frustums of cone (frustums)
top radius:4.5'
height