A man lends $ 1000 in four sums. If he gets 3% for $ 200, 3 1/2% for $400 and 5% for $ 250, ;what percent must he get for the remainder, if his average interest is 3.85% ?
A man lends $ 1000 in four sums. If he gets 3% for $ 200, 3 1/2% for $400 and 5% for $ 250, ;what percent must he get for the remainder, if his average interest is 3.85% ?