Question

10+5=240 how to solve

Answer 1

10+5 = 15
Multiplying 15 with 15..
15×15 = 225
Adding it with 15 again...
225+15
= 240.

Hope this helps!! cheers!! :)

Answer 2

10 + 5 = 15 and 15*15=225 and then add 225 nd 15 it gives 240.....