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What is the solution to the system of equations: 2x + 3y = 6 and x - y = 1?

C. (1, 2)
Posted in:  Linear Equations -  Algebra -  Mathematics

Which of the following numbers is a perfect square?

B. 64
Posted in:  Numbers -  Arithmetic -  Mathematics

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

A. 30
Posted in:  Numbers -  Arithmetic -  Mathematics

A and B can complete a work in 20 days. If A works alone for 5 days and then B joins him, how many more days will they take to finish the work?

D. 8 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If the equations 3x + 4y = 12 and 6x + 8y = 24 are solved simultaneously, what can be concluded about their solutions?

C. THEY HAVE INFINITELY MANY SOLUTIONS.
Posted in:  Linear Equations -  Algebra -  Mathematics