Question 9/30 If ADD = 81, BAD = 49, and CAD = 64. then what is the value of ADA?​

Answer: 36
Explanation: Here the regularity of the connection of the letter with its position in the alphabet is traced:
A - 1; B - 2; C - 3; D - 4.
And the resulting amount must be squared to get the value.
The letter A is the first in the alphabet, D is the fourth. Add up these numbers and square the resulting number:
ADD — 1+4+4 — 9 — 9×9 = 81
We'll do the same with the rest of the letters to get the value:
BAD — 2+1+4 — 7 — 7×7 = 79
CAD — 3+1+4 — 8 — 8×8 = 64
ADA — 1+4+1 — 6 — 6×6 = 36