start with sequencce of non-zero digits 123456789. problem is to place plus or minus sign between them so that the result of this operation will be 100.

Asked by omsingh | 3rd Jun, 2015, 10:14: AM

Expert Answer:

Placing plus and minus signs at different places by trial and error method, we get the correct placing as follows:
123 - 45 - 67 + 89 
= 100

Answered by satyajit samal | 3rd Jun, 2015, 12:38: PM