1. Ms. Napucao invested P20,500.00 in a bank which yield 16 ½% simple interest for 10 months. Find the interest. 2. How long will it take the principal to double itself if invested at 12% simple...

1. Ms. Napucao invested P20,500.00 in a bank which yield 16 ½% simple interest for 10
months. Find the interest.

2. How long will it take the principal to double itself if invested at 12% simple interest?

3. Find the interest earned if P30,000.00 was invested at 12% simple interest for 2 ½
years.

4. At what rate was P2,160.00 invested if it earned P35.00 for 115 days?

5. Roberto borrowed P3,150.00 at 6% for 264 days. How much interest did he pay for the
use of money?

6. Jeric invested certain amount at 12% for 2 years and earned P24,000.00. How much
did he invest?

7. Mr. Kempis invested P6,200.00 which earned interest amounting to P520.00 for 11
months. Find the rate of interest.