Question

two Mother mechanics,pappu and raja working together can Overload a scooter in 6 hour.pappu alone can do the job in 15 hours. in how many hours raju alone do it?

Answer 1

Answer:

10 hr

Step-by-step explanation:

1/(1/6 - 1/15)

= 1/(5-2)/30

= 30/3

= 10 hr