The correct option is B no
Given, x4−5>10
Step 1: Add 5 to both sides of the inequality in order to remove the 5 on the left hand side.
⇒x4−5+5>10+5⇒x4>15
Step 2: Now, multiply both sides by 4 to eliminate 4 on the left side of the equation.
⇒x4×4>15×4⇒x>60
So, the value of x which is greater than 60 will be the solution of the inequality.
Hence, x=60 is not a solution of the inequality x4−5>11.