Ratio of ram's age 3 years ago to Shyam's age 4 years hence is 4:7. After 11 years, the difference between their age will be 8 years. What will be the average age of Ram and Kushal after 17 years, if Kushal is 4 years younger to Shyam?
Answers
ge8nsvwyab
gsien suis
ghsuenebus
Given : Ratio of ram's age 3 years ago to Shyam's age 4 years hence is 4:7. After 11 years, the difference between their age will be 8 years.
Kushal is 4 years younger to Shyam
To find : What will be the average age of Ram and Kushal after 17 years
Solution:
After 11 years, the difference between their age will be 8 years.
Ram current age = x
Shayam current age = y
(x - 3) : ( y + 4) = 4 : 7
=> 7x - 21 = 4y + 16
=> 7x = 4y + 37
difference between their age will be 8 years. ( that remains always constant )
x = y + 8 or y = x + 8
7x = 4y + 37
x = y + 8
=> y will be - ve so not possible
7x = 4y + 37
y = x + 8
x = 23 , y = 31
Ram current age = 23
Shayam current age = 31
Kushal is 4 years younger to Shyam
=> kushal age = 31 - 4 = 27
Average age of Ram and Kushal = (23 + 27)/2 = 25
Average age of Ram and Kushal after 17 years, = 25 + 17 = 42
Hence Average age of Ram and Kushal after 17 years = 42
Learn More:
the combined age of joshi and jonny is 49 joshi is twice as old as ...
brainly.in/question/13949967
Age of a is 20 years less than that of b. If age of a is 40% of their ...
brainly.in/question/7739131
The combined age of Joshi &
brainly.in/question/13887563