Answer:
7 + 2 + 5 = 143547
Step-by-step explanation:
a + b + c = [a · b][a · c][a · b + a · c - b]
The first two digits of the answer are the product of the 1st and 2nd terms of the question.
The 3rd and 4th digits of the answer are the product of the 1st and 3rd terms of the question.
The 5th and 6th digits of the answer are the sum of the products of the 1st & 2nd terms and the 3rd & 4th terms of the answer minus the 2nd term of the question.
7 + 2 + 5 = [7 · 2][7 · 5][7 · 2 + 7 · 5 - 2]
= 143547
[tex]\small \bold{ 5+3+2=151022}[/tex]
Multiply first two digits
[tex]\small \bold{ 5×3=15}[/tex]
Multiply first and third digit
[tex]\small \bold{5×2=10 }[/tex]
Add two number and subtract middle digit
[tex]\small \bold{15+10-3(middle \: digit)=22 }[/tex]
Join three answers to get 151022
Similarly,
[tex]\small \bold{7+2+5=? }[/tex]
[tex]\small \bold{ 7×2=14}[/tex]
[tex]\small \bold{ 7×5=35}[/tex]
[tex]\small \bold{ 14+35-2=47}[/tex]
Joining them gets 143547
So ,
[tex]\small \bold{7+2+5=143547 }[/tex]
