Maths Puzzle - Logic

Question

Somebody asked me this puzzle, but they don't have answer to it.

1+2+3+4 = 61

2+3+4+5 = 52

3+4+5+6 = 51

4+5+6+7 = 50

7+8+9+10 = ?

I want to know whether my reasoning and solution is correct or not

• We need to find out what 34 is equal to

• The logic is 4th equation - 2nd equation , then add the result to 2nd equation

• Now, we know what 22 equals to
• Now add, the 4th equation , we know what 44 equals to
• Now, subtract with first equation, and you get what 34 equals to
• Which is 39

Answer 1

Hint:

\begin{align}1+2+3+4&\to\text{One}+\text{Two}+\text{Three}+\text{Four}\\&\to\text{O}+\text{T}+\text{T}+\text{F}\\&\to\text{Alphabet}_{15}+\text{Alphabet}_{20}+\text{Alphabet}_{20}+\text{Alphabet}_{6}\\&\to15+20+20+6\\&=61\end{align}