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If A can do a piece of work in 15 days and B can do it in 20 days, how long will it take for both A and B to complete the work together?

A. 8.57 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

A can do a work in 30 days, B can do the same work in 45 days, and C can do it in 60 days. If they work together, how long will they take to complete the work?

B. 12 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If A can complete a work in 24 days and B can complete it in 36 days, how much work will be left if they work together for 8 days?

A. 1/3
Posted in:  Time & Work -  Aptitude -  Mathematics

What is the least common multiple (LCM) of 12 and 15?

B. 60
Posted in:  Numbers -  Arithmetic -  Mathematics

If x = 3 and y = 4, what is the value of x^2 + y^2?

A. 25
Posted in:  Numbers -  Arithmetic -  Mathematics