wenael put P15,000.00 into savings account in January. Six months later, he put P25,000.00 more into the account. The interest rate is 5% per year. How much interest will be earned at the end of the year? 4. How long will it take P5,000.00 to double to P10,000.00 when interest rate is 5% a month? 5. Melanie borrowed P20,000.00 for six months with a yearly interest of 15%. What was the interest of the loan? 6. Carlos has P30,000.00 invested in a cooperative that pays a 6% yearly interest. In how many years will his investment earn P3,600.00? 7. Mona applied a loan of P50,000.00 at a yearly interest of 10%. If she paid back the credit union of P65,000.00, what is the time period of her loan? 8. Vicky put P15,000.00 into savings account in January. Six months later, she put P50,000.00 more into the account. The interest rate is 6% per year. How much interest will be earned at the end of the year? 9. Roger loaned Ben some money at the rate of 5% interests per year when Bon paid back the loan at the end of three years, he had to pay a P45,000.00 interest. How much money did he borrow? 16 3 10. Shane's father borrowed P40,000.00 from a cooperative. At the end of 3 years he paid back P60,000.00. What was the rate of interest? M​