Question

Which number should be subtracted from 7,12,18 such that resultant numbers are in continued proportion

Answer 1

Answer:

like this..



⇒ (16 - x)2 = (12 - x)(21 - x)

⇒ 256 + x2 – 32x = 252 - 33x + x2

⇒-32x + 33x = 252 – 256

⇒ x= -4