plz answer no spam
The ages of sonu and Monu are in the ratio 7 : 5. Ten years hence, the ratio of their ages will be 9 : 7. Find their present ages.
Share
plz answer no spam
The ages of sonu and Monu are in the ratio 7 : 5. Ten years hence, the ratio of their ages will be 9 : 7. Find their present ages.
Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Step-by-step explanation:
Let the present age of Sonu be 7x years
Present age of Monu be 5x years
Sonu’s age after 10 years = (7x + 10) years
Monu’s age after 10 years = (5x + 10) years
So, (7x + 10) / (5x + 10) = 9/7
by using cross-multiplication we get,
7(7x + 10) = 9(5x + 10) 49x + 70
= 45x + 90 49x – 45x
= 90 – 70 4x
= 20 x
= 20/4 = 5
∴ Present age of Sonu is 7x = 7(5) = 35years
Present age of Monu is 5x = 5(5) = 25years
After 10 year
According to the question
Present age of Sonu = 7x= 7×5= 35years
Present age of Monu = 5x= 5×5= 25years
Mark as brainliest plzzz