Question

A is twice as efficient as B in doing work and B is twice as efficient at doing work. If A and B together can do a piece of work in 4 days, then C alone can do it​

Answer 1

Answer:

6 days

Step-by-step explanation:

let us take b=x

so, a=2x  

total work =total efficency x total time  

total work = (2x+x ) 4

total work =3x x 4

total work= 12x

c can complete the work in= 12x / 2x = 6 days