Question

1+2=21
2+3=36
3+4=43
4+5+?

Answer 1

Answer:

54 is answer please follow me on brainly for maths solution

Answer 2

Missing number (?) = 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:

a + b = ba, a + b = ba + 4, a + b = ba, a + b = ba + 4, ........

1 + 2 = 2, 1 = 21

2 + 3 = 3, 2 = 32 + 4 = 36

3 + 4 = 4, 3 = 43

? = 4 + 5 = 5, 4 = 54 + 4 = 58

∴ Missing number (?) = 58