Question

mode of x ,x / 3 ,X /3, X / 3 , x/5,x/ 2 ,X / 2 is '3'then find x?( answer fastly please) ​

Answer 1

Answer:

x = 9

Step-by-step explanation:

Note : Mood is the highly repeated element ( number) in the given series

In the give case the highly repeated element

x = once

x/3 = thrice

x/5 = once

x/2 = twice

Hence mood = x/3

therefore x/3 = 3

=> x = 3×3

=> x = 9

Answer 2

Step-by-step explanation:

Is x > 0?

(1)  --> LHS is an absolute value, which is always non-negative (), so RHS must also be non-negative -->  --> , hence . Sufficient. You can see here that you don't even need to find exact value(s) of x to answer the question.

(2) . Square both sides:  -->. Apply , rather than squaring: -->  -->  or . Not sufficient.

Answer: A.

Hope it helps.