If = 5 , then the value of 1 + 1/x2 is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 17.
(x - 1)/x = 5
⇒ 1 - 1/x = 5
⇒ -1/x = 4
⇒ x = -1/4
⇒ x2 = 1/16
⇒ 1/x2 = 16
⇒ 1 + 1/x2 = 1 + 16 = 17
SSC Selection Post - Higher Secondary Level - 3 Aug 2022 - Shift 4 • Quantitative Aptitude • Q67
If = 5 , then the value of 1 + 1/x2 is:
Correct answer: D
Explanation
The correct answer is option 4 i.e. 17.
(x - 1)/x = 5
⇒ 1 - 1/x = 5
⇒ -1/x = 4
⇒ x = -1/4
⇒ x2 = 1/16
⇒ 1/x2 = 16
⇒ 1 + 1/x2 = 1 + 16 = 17