What is the answer to this problem If 1 plus 5 equals 12 and 2 plus 10 equals 24 and 3 plus 15 equals 36 then 5 plus 25 equals what?

Answer 1

5 plus 25 equals 60.

Need to solve for 5 plus 25 equals ?:

2 plus 10 equals 24 is equivalent to 2 × (1 plus 5) equals 2 × (12); and

3 plus 15 equals 36 is equivalent to 3 ×(1 plus 5) equals 3 × (12); thus

5 plus 25 equals ? is equivalent to 5 × (1 plus 5) equals 5 × (12); thus

? = 5 × 12 = 60.