The LCM of 32 and 40 equals to 9 less than the square of X. Find the positive value of X.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 13.
The LCM of 32 and 40 = 160
The LCM of 32 and 40 is 9 less than the square of X.
So,
⇒ x2 - 9 = 160
⇒ x2 = 169
⇒ x = 13