plz tell the answer its urgent
Share
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.
Answer:
2
Step-by-step explanation:
Let the number added be x.
According to Question,
(5+x) : (8+x) : : (12+x) : (18+x)
=> (5+x) / (8+x) = (12+x) / (18+x)
=> (5+x) (18+x) = (12+x) (8+x)
=> x²+23x+90 = x²+20x+96
=> 23x - 20x = 96-90
=> 3x = 6
=> x = 2
Hence, 2 should be added to each of the numbers to make them proportional.