Question

2. A alone can do a work in 40 days. Along with B, he finishes the work and earns Rs. 2000 for himself. If B
earns Rs. 4000 in how many days can he do the same work individually?
(a) 20
(b) 30
(c) 40
(d) 50
(e) None of these​

Answer 1

Answer:

None of these

Step-by-step explanation:

I think so

Answer 2

Answer:

none of these

Step-by-step explanation:

please mark me