Question

1+2=21.2+3=36.3+4=43.4+5=​

Answer 1

The missing number is equal to 58.

Step-by-step explanation:

We have,

1 + 2 = 21, 2 + 3 = 36, 3 + 4 = 43

To find, the value of 4 + 5 = ?

The pattern follow:

Reverse numbers, Reverse numbers + 4, Reverse numbers, Reverse numbers + 4, .....

1 + 2 ⇒ Reverse number 2,1 = 21

2 + 3 ⇒ Reverse number + 4 =  32 + 4 = 36

3 + 4 ⇒ Reverse number 4, 3 = 43

Similarly,

? = 4 + 5 ⇒ Reverse number + 4 =  54 + 4 = 58

∴ The missing number = 58.

Thus, the missing number is 58.

Answer 2

Answer:

The answer is 58

Step-by-step explanation:

1+2=21

2+3=32+4=36

3+4=43

4+5=54+4=58