Mr. Jones got a loan for a sum of money, and at the time of repayment he owned $75.00 in interest. Mr. Brown borrowed three times the amount of money Mr. Jones had borrowed at the same rate of interest for twice as long a time. How much interest does Mr. Brown pay?

Answer 1

If Jones borrowed $j at a rate r, he paid 75.00 in interest. So, we see that

jr = 75
(3j)*r*2 = 3*2*jr = 6*75 = 300

Answer 2

Thanks Steve

Answer 3

for the discrete random variable X, where X is the number of credit cards people own in a bank the probability distribution is given by two function. a. find the value of constant k

Answer 4

6*75 is actually 450