Tricky Maths Puzzle : Use the key to find the missing letter

Question:

 

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The picture shows some letters that are arranged in a pattern

Use the key to find the missing letter?

Bit Logical,but It’s leaving adults scratching their heads.

Answer:(please provide your opinion in comments below)

Bit Tricky logic,
Here we need to Add up all values of a diagonal and then subtract all values of other diagonal from it.
So ,Add S,B,G which form a diagonal and subtract values of B,P which is part of other diagonal
S+B+G-B-P = 23+6+11-6-20= 14
So value of J is 14

One thought on “Tricky Maths Puzzle : Use the key to find the missing letter

  1. J=14. All subtraction: 20-11=9; 23-20=3; 9-3=6. So, 23-14=9; 14-11=3; 9-3=6. With 14 in the corner, you can also now get 6 with (20-11) – (14-11); (23-14) – (23-20)

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