Question

20 + 20 = 0; 21 + 21 = 4; 22 + 22 = 8; 23 + 23 = 12; 24+24=?​

Answer 1

Answer:

16

Step-by-step explanation:

There is a trend in series where last digits of integers were added then multiplied by two.

=> 24 + 24 = (4+4) × 2 = 16

Thank you!

Answer 2

Answer

40 = 0 ; 41 = 4 ; 44 = 8 ; 46 = 12 ; 48 = 16

All the best :)