The length and breadth of a table cloth are 2.5 m and 1.5 m. Find the length of lace required to edge the table cloth. If the cost of lace is Rs 25 per metre, find the total cost
of the lace.

Abank manager wants to encourage new customers to open accounts with principals of at least $2,500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?