Search found 17 matches
Interest PS Question
Loan X has principal $10,000X and yearly simple rate of 4%. Loan Y has Principal $10,000y and yearly simple rate of 8%. Loans are consolidated to $(10,000x +10,000y) with yearly simple rate of r%. r = (4x+4y)/(x+y). Find value for x and y corresponding to yearly simple interest rate of 5% for the co...
- by dunnec3
Fri Dec 04, 2015 3:35 am- Forum: Problem Solving
- Topic: Interest PS Question
- Replies: 2
- Views: 1866
Prime Number Q
If k is an integer greater than 1, and S is the sum of all positive divisors of k, is S > k + 1 ?
I can't see how you can rephrase 'Is S > k + 1 ?' to 'Is k not prime ?' Can anyone help me out? [/quote]
- by dunnec3
Sun Nov 22, 2015 9:42 am- Forum: Data Sufficiency
- Topic: Prime Number Q
- Replies: 3
- Views: 1751