Q. If 10x = 25² – 15² , then find x.
β
Correct Answer: (A)
40
Explanation:
Whenever three numbers are in successive ratio, the middle term is the geometric mean of the first and third. So,
x=β12Γ48=24
Explanation by: Mr. Dubey
Whenever three numbers are in successive ratio, the middle term is the geometric mean of the first and third. So,
x=β12Γ48=24