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Shahnawaz Khan

· started a discussion

· 1 Months ago

DETAILS (Question:109859.0)

PLZ PROVIDE DETAIL AND PREVIOUS STEP TO FIND X , HOW DID YOU CALCULATE X

Question:
5 year ago, the father’s age was 3 times of his son’s age. 5 years hence the ratio between the ages of the father and the son will become 11: 5. Find the father’s present age.
Options:
A) 40 years
B) 45 years
C) 50 years
D) 55 years
Solution:
Ans(c) 


Let the 5 years ago, father's age and son's age was 3x and x respectively.


5 year later, Fathers age=3x+5+5=3x+10

and his son age =x+5+5=x+10


According to question,


\(\cfrac{3x+10}{x+10}=\cfrac{11}{5}\)

15x+50=11x+110

4x=60

x=60/4

x=15


Father's present age=3x+5=3x15+5=45+5=50 years

Knowledge Expert

· commented

· 1 Months ago

Dear student,
We have updated the solution.
Keep learning,
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