Question

Amar earns Rs. 80 in 8 h and Prashant Rs. 90 in 15 h. 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

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Answer 2

8:9 is the answer and if you are asking with respect to time we can write it as 10/hr:6/hr