Question

Solve for x with explanation. No guesses.
Mental Ability.​

Answer 1

Option (iii) 93 is correct.

Step-by-step explanation:

From the given figure  we can see that

The opposite lines of the numbers are divisible by the same digit.

example: 1

Given 8, 22

both the numbers are divisible by 2

example: 2

Given 9, 750

In the second opposite lines both the numbers are divisible by 3

Now we have to find out the value of the x.

So, in the middle line the two numbers are 6, x.

By putting the given options

(i) 6, 71 -

   both the digits can not be divided by the same digit.

so, this is incorrect.

Same as in options 2 and 4

Option (iii) is 6, 93

Both the digits are divisible by the digit 3.

So, the correct answer is 93.

Answer 2

Hello user

The pair on the line opposite to the lines needed not to be co-prime ie, they should not have there HCF as 1.

Proceeding further we get...

Since, all pairs are co-primes except for 6,93

So, x= 93 is the right answer

Hope this helps