Question

A is twice as efficient as b.And toether finished a work in 18 days how many days a can alone comlete thios work

Answer 1

Answer:

27 Days

Step-by-step explanation:

1/a + 1/b = 1/18

1/a + 1/2a = 1/18

so (1/a)(18+9) = 1

a = 27 Days