Question

31-43=1 , 74-21=4, 92-73=9, 82-42=? ​

Answer 1

Answer:

15

Step-by-step explanation:

Because 1st one is 1 and 2nd one is 4 see in this adding that 1 then 3rd one is 9 then next one is 15 only

Answer 2

Answer:

16

Step-by-step explanation:

We have been given

31 - 43 = 1

74 - 21 = 4

92 -73 =9

So find the value at 82 - 42 = is what

31 - 43 =1

[( 3 - 1 ) - ( 4 -3 )]

 1 × 1 = 1

74 - 21 = 4

[(7 - 4 ) - ( 2 - 1)]

2 × 2 = 4

92 - 73 = 9

[( 9 - 2 ) -( 7 - 3 )]

3 × 3 = 9

Now ,

82 - 42 =

[( 8 - 2) - ( 4 - 2 )]

4 × 4 = 16

Correct answer is  82 - 42 = 16