Question

I have 100 rupees.
I spend 40 rupees and 100-40=60 rupees.
I spend 30 rupees and 60-30= 30 rupees.
I spend 18 rupees and 30-18=12 rupees .
I spend 12 rupees and 12-12=0 rupees.
Then if I add how much I spend,then it will be 40+30+18+12=100


But if I add 60+30+12+00=102 .

then is the calculation is correct.

Answer 1

yes calculation is correct

Answer 2

answer is right 

 no dought