Question

a person gives 1% office monthly income to his two sons as a pocket money the elder son gets 80% of the total amount given and his friends 80% of fish and if he saves rupees 60 per month determine the persons monthly income​

Answer 1

Now Let His Total Salary Per Month Be Rs x.

Now

Amount Given To His Sons = 1/100*x = x/100

Now Amount Received By Elder Son = 80/100*x/100 = 80x/10000 = 8x/1000 = x/125

Now Its Given That He Spends 80% Of His Share

So Amount Saved = 100-80 = 20%

20/100*x/125 = x/625

Now This Equal Rs 20

x/625 = 20

x = Rs 12500