In a certain code, TREE is written as 56 and SUN is written as 60. How is PLANT written in that code?

63Correct answerYour answer68Correct answerYour answer73Correct answerYour answer78Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer C

Correct answer: C

Plain sums: TREE = $20 + 18 + 5 + 5 = 48$ and SUN = $19 + 21 + 14 = 54$ .
The codes are 8 more and 6 more: TREE has 4 letters and SUN has 3, so the code adds 2 for each letter.
PLANT: $16 + 12 + 1 + 14 + 20 = 63$ ; with 5 letters add 10, giving 73.

Worth noting

Adding a fixed 8 (from TREE alone) would make SUN 62, not 60, so the extra depends on the length. 63 is the plain sum.

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