2015 · Q25
The efficiency of P is twice that of Q, whereas the efficiency of P and Q together is three times that of R. If P, Q and R work together on a job, in what ratio should they share their earnings?
Elementary MathematicsTime and Work
- A2:1:1
- B4:2:1
- C4:3:2
- D4:2:3
Explanation
P = 2Q and P + Q = 3R; with R = 1 unit, P = 2 and Q = 1, so earnings are shared in the ratio 2:1:1 (option A).