The present ages of Shanthi and Keerthi are in the ratio of 7:3. After 5 years, Shanthi’s age will be 40. How old will Keerthi be after 5 years?

Explanation

To solve this, let's break down the information given: Step 1: Let the present ages of Shanthi and Keerthi be 7x and 3x , respectively, based on the given ratio of 7:3 . Step 2: According to the problem, after 5 years, Shanthi’s age will be 40. This means: 7x + 5 = 40 Step 3: Solve for x : 7x = 40 - 5 7x = 35 x = 35 / 7 x=5 Step 4: Calculate Keerthi's present age using 3x : Keerthi's present age = 3 * 5 = 15 Step 5: Determine Keerthi's age after 5 years: Keerthi's age after 5 years = 15 + 5 = 20 Answer: Keerthi will be 20 years old after 5 years.