Question

If A=26, SUN=27, then INDUS=?

• A. 29
• B. 67
• C. 68
• D. 50

Hint:

In letter-to-number coding, if you see A=26 or Z=1, it's a strong hint that you need to use reverse alphabetical positions. The value for any letter can be quickly found with the formula (27 - standard position).

Answer 1

The Correct Option is C

This is a coding-decoding problem where letters are assigned numerical values. Step 1: Decode the given rule. The standard assignment is A=1, B=2, etc. However, here we are given A=26. This suggests a reverse alphabetical order, where Z=1, Y=2, ..., B=25, A=26. The value of any letter is (27 - its standard position).

Step 2: Verify the rule with the example "SUN=27". Let's find the reverse value for each letter in SUN.
S is the 19th letter. Reverse value = 27 - 19 = 8.
U is the 21st letter. Reverse value = 27 - 21 = 6.
N is the 14th letter. Reverse value = 27 - 14 = 13. Now, sum these values: 8 + 6 + 13 = 27. This matches the given information, so our rule is correct.

Step 3: Apply the rule to "INDUS". Find the reverse value for each letter and sum them up.
I is the 9th letter. Reverse value = 27 - 9 = 18.
N is the 14th letter. Reverse value = 27 - 14 = 13.
D is the 4th letter. Reverse value = 27 - 4 = 23.
U is the 21st letter. Reverse value = 27 - 21 = 6.
S is the 19th letter. Reverse value = 27 - 19 = 8.

Step 4: Calculate the final sum. Sum = 18 + 13 + 23 + 6 + 8 = 68.