Question

any one have ability to solve it​

Answer 1

Step-by-step explanation:

Let Hina's efficiency be x

therefore,Kanchan's efficiency=4x

Hina's 1 day work=1/x

Kanchan's 1 day work=1/4x

Hina + Kanchan's 1 day work=1/24

Therefore,

(1/x)+(1/4x)= 1/24

(4+1)/4x=1/24

5/4x=1/24

5/x=1/6

30=x

Hina's can complete the work in 30 days.

Hope it helps!!!