Question

If 'CONSTABLE' is coded as 91, what will be the code number for 'STABLE'?

• A. 97
• B. 59
• C. 79
• D. 75

Hint:

Give each letter its alphabet position and add them up, the same way CONSTABLE was coded.

Answer 1

The Correct Option is B

Step 1: Work out the coding rule from CONSTABLE.
Give every letter of the alphabet its position number: A = 1, B = 2, C = 3 and so on up to Z = 26. Now add up the position numbers of the letters in CONSTABLE.
C = 3, O = 15, N = 14, S = 19, T = 20, A = 1, B = 2, L = 12, E = 5.
Sum = 3 + 15 + 14 + 19 + 20 + 1 + 2 + 12 + 5 = 91.
This matches the given code of 91, so the rule is confirmed: the code of a word is simply the sum of the alphabetical positions of its letters.

Step 2: Apply the same rule to STABLE.
STABLE uses the letters S, T, A, B, L, E, all of which already appeared in CONSTABLE.
S = 19, T = 20, A = 1, B = 2, L = 12, E = 5.
Sum = 19 + 20 + 1 + 2 + 12 + 5 = 59.

Step 3: Rule out the other options.
97 and 79 come from mis-adding a letter twice or missing one letter, and 75 comes from wrongly including an extra letter's value, so none of them fit the direct letter-sum rule.

Final Answer:
The code number for STABLE is 59, since it is built from letters already valued while coding CONSTABLE. \[ \boxed{STABLE = 59} \]