P works thrice as fast as Q, whereas P and Q together can work four times as fast as R . if P, Q and R together work on a job, what ratio should they share the earnings​

q and r have equal efficiency while p is three times as efficient as either q or r

Step-by-step explanation:

From the first statement: p = 3q

From the second statement: p + q = 4r

Comparing both the statements: 4q = 4r => q = r

Thus, q and r have equal efficiency, while p is thrice as efficient as either q or r.

Therefore, p : q : r = 3 : 1 : 1

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step-by-step explanation: