Question

find the missing number 1 2 3 11 7 5 120 45 ?

Answer 1

Answer:

Hence, the missing number is:

16

Step-by-step explanation:

We arrange these numbers in the column wise and row wise pattern as:

 1       2       3

11       7       5

120    45      ?

We could see the pattern as when we go to the first column as:

1

11

120

We observe that:

$11^2-1^2=121-1=120$

similarly now we consider he second column and observe the same pattern as:

2

7

45

$7^2-2^2=49-4=45$

Now we consider the third column:

3

5

?

Hence, the value in the missing place is calculated as:

$5^2-3^2=25-9=16$

Hence, the missing number is:

16

Answer 2

Answer:

Hence, the missing number is:

16

Step-by-step explanation:

We arrange these numbers in the column wise and row wise pattern as:

1       2       3

11       7       5

120    45      ?

We could see the pattern as when we go to the first column as:

1

11

120

We observe that:

similarly now we consider he second column and observe the same pattern as:

2

7

45

Now we consider the third column:

3

5

?

Hence, the value in the missing place is calculated as:

Hence, the missing number is:

16