Question

There is a set of 9 numbers that relate to each other in a certain way. Find the way the first set of boxes works. The numbers in the second set work in exactly the same way. Find the number that must 20 6 22 5 8 12 75 42 102 12 15 3 6 54 81 45

Answer 1

Answer:

12

Step-by-step explanation:

The question in the correct form has been attached here.

By careful observation of the given table we find that if we add the first two rows and multiply it by 3, we get the third row.

Lets check it

(20 + 5) × 3   = 25 × 3 = 75

(6 + 8) × 3      = 14 × 3  = 42

(22 + 12) × 3   = 34 × 3 = 102

(12 + 6) × 3      = 18 × 3  = 54

(3 + 12) × 3      = 15 × 3  = 45

Let the number in the empty box be x

Then as seen in the above pattern

(15 + x) × 3   = 81

or, (15 + x) = 81/3

or, (15 + x) = 27

or, x = 27 - 15 = 12

Thus, the number in the empty box is 12

Hope this helps.