In a race among four runners A, B, C, and D, A finishes before B, but after C. D finishes last. Who finishes first?

C. C

If 'APPLE' is written as 'BQQMF', what is the code for 'GRAPE'?

A. HSBQF

If the roots of the quadratic equation 2x² + 3x + k = 0 are real and equal, what is the value of k?

A. -4.5
Posted in:  Quadratic Equations -  Algebra -  Mathematics

In a race, five participants: P, Q, R, S, and T have the following conditions: P finishes before Q but after R. S finishes before T. Who finishes last?

B. Q

A can do a piece of work in 20 days, B can do it in 30 days. If they work together for 10 days, how much of the work is left?

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