Question

5,3 = 25
7,1 = 3
9,4 = 31
6,6 = ?​

Answer 1

Given:

 A series pattern is given

• 5, 3 = 25
• 7, 1 = 3
• 9, 4 = 31

To Find:

 Missing number of series

• 6,6 = ?​

Solution:

Following pattern is used in the given series

   ⇒    5, 3 = 25

• First reverse the digits of left hand side numbers

              ⇒      5, 3 = 35

Now,

• Subtract 10 from the reversed digit

              ⇒     35- 10 = 25

Now,

              ⇒     7, 1 = 3

Reveres digit of 7, 1 = 17

Now, subtract 10 + 4 from 17

            ⇒      17 - 10 + 4 = 3

Now,

             ⇒    9, 4 = 31

                   49 - 10 + 8 = 31

Now take

            ⇒    6,6

                   66 - 10 + 12 = 66 - 22 = 44

Thus, the missing number is 44