Question

Anand earns rs 80 in 7 hours and promod rs 90 in 12 hours .the ratio of
their earnings is??

Answer 1

Here find both persons earning in 1 hour.
As Anand earn Rs 80 in 7 hours , so he earn 80 /7 in one hour

And Pramod earn Rs 90 in 12 hours , so he earn 90/12 in one hour .

So the ratio of their earning is Anand : pramod = 807/9012/ =32:21

Answer 2

https://www.youtube.com/watch?v=QQnLM2BIonQ&t=1555s