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If A can do a piece of work in 15 days and B can do it in 10 days, how long will it take for both A and B to complete the work together?

A. 6 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If the roots of the quadratic equation ax^2 + bx + c = 0 are 3 and 4, what is the value of a if b = -7 and c = 12?

A. 1
Posted in:  Basic Operations & Factorization -  Algebra -  Mathematics

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

A. 30
Posted in:  Numbers -  Arithmetic -  Mathematics

A can do a piece of work in 12 days, while B can do it in 18 days. If they work together for 6 days, how much work is left?

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

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

A. 25
Posted in:  Numbers -  Arithmetic -  Mathematics