The ratio of ages of Amit, Sumit & Rahul five years ago was 2 : 4 : 5. The sum of their present ages is 180 years. Find their present ages.
The ratio of ages of Amit, Sumit & Rahul five years ago was 2 : 4 : 5. The sum of their present ages is 180 years. Find their present ages.
Option 1 -
35, 65, 80
Option 2 -
30, 65, 75
Option 3 -
45, 65, 80
Option 4 -
45, 60, 75
-
1 Answer
-
Correct Option - 1
Detailed Solution:et the present ages be X, Y, and Z years (X – 5): (Y – 5): (Z – 5) = 2 : 4 : 5 and taking pairwise values. Substitute these values in the equation
2a + 4a + 5a = x + y + z – 15
11a = 165
a = 15
Five years ago ages were 30, 60, 75
Present ages are 35, 65, 80.
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 65k Colleges
- 1.2k Exams
- 688k Reviews
- 1800k Answers