Question

Rohit monthly income is 15% more than Ranjit monthly income and Ranjit monthly income is 20% less than rohans monthly income what is the ratio of monthly income of Rohit to the monthly income of Rohan

Answer 1

Answer:

23 : 25

Step-by-step explanation:

Let say Rohan Monthly Income  = 100A

Ranjit monthly income is 20% less than rohans monthly income

=> Ranjit Monthly Income = 100A - (20/100)100A  = 80A

Ranjit Monthly Income =  80A

Rohit monthly income is 15% more than Ranjit monthly income

=> Rohit monthly income = 80A  + (15/100)80A  = 92A

Rohit monthly income = 92A

ratio of monthly income of Rohit to the monthly income of Rohan

92A : 100A

23 : 25

the ratio of monthly income of Rohit to the monthly income of Rohan = 23:25

Answer 2

23:25

Step-by-step explanation:

Let the monthly income of Rohan be Rs 100.

therefore, monthly income of Ranjeet is:

          ⇒ 20% less than that of Rohan

          ⇒ 20% less in 100

          ⇒ 100(1 - 20%)

          ⇒ 100(1 - 0.2)

          ⇒ 80

therefore,  monthly income of Rohit is:        

          ⇒ 15% more than that of Ranjeet

          ⇒ 15% more in 80

          ⇒ 80(1 + 15%)

          ⇒ 92

Hence,  required ratio is:  

⇒ income of Rohit : income of Rohan

⇒  92 : 100

⇒  23 : 25