Edit MetaData
4Â years, 9Â months ago
A,B,C,D and E are talking picture together. A and B are best friends and want to stand together while C and E can not stand each other and don't want to placed next to each other. How many arrangements are possible given these two conditions?
Quick, Easy and Effective Revision
By proceeding you agree to create your account
Free CAT Formulas PDF will be sent to your email address soon !!!