Question

In a certain language, HEART is written as 2018010508, and LUNGS is written as 1907142112. If BRAIN is written in that language, what will be the last number?

• A. 5
• B. 9
• C. 4
• D. 2

Hint:

The given pattern is reverse of the positions of letters in the word using the alphabet index: A=1, ..., Z=26.

Answer 1

The Correct Option is D

Step 1: Convert each letter to its alphabetical position. 
HEART: H = 8, E = 5, A = 1, R = 18, T = 20 \(\Rightarrow\) 20 18 01 05 08 (reversed)
LUNGS: L = 12, U = 21, N = 14, G = 7, S = 19 \(\Rightarrow\) 19 07 14 21 12 (reversed) 
Step 2: Apply the same pattern to BRAIN. 
B = 2, R = 18, A = 1, I = 9, N = 14 \(\Rightarrow\) reverse: 14 09 01 18 02
Step 3: Last number in the code is the first alphabet of the word (B) \(\Rightarrow\) 2