Lesson 6
INTEREST
At the end of the lesson, the learner is able to:
A. Define simple interest and maturity value.
B. Making right decisions in borrowing money.
C. Convert interest rate per year to equivalent
monthly rate and vice versa,
D. Solve for the interest ad its maturity value.
Review
•https://quizizz.com/admin/quiz/5fc6f2314
0269b001b1ee59b/break-even-review
Benchmark of interest rate of the Philippine
Central Bank of the Philippines
•Describe your savings
plan in this time of new
normal
INTEREST
•The amount of charge for
loans or borrowed money.
Maturity Value M
•M = P + I
Since I=PRT, then
M = P+PRT
= P(1+RT)
Convert each rate
Examples
a.14% per year to the equivalent monthly rate.
Solution: Divide the annual rate by 12 to obtain the
equivalent monthly rate.
14÷12 = 1.17% monthly
Examples
b. 2.5% per month to equivalent annual rate.
a.Solution: Multiply the monthly rate by 12 to get
the equivalent annual rate.
2.5×12 = 30% annually
Examples of Real life
Situations
Example 1:
•Joanna borrowed an amount of
Php100,000.00 from Tagum Cooperative at
an interest rate of 2% to finance renovation
of her house. How much is the interest if her
due date is October of this year?
Solution
• Given: P = Php100,000 R = 2% = 0.02 T = 1 year
• Solution: I = PRT
• = 100,000(0.02)(1)
• = Php2,000
Example 2
•Compute the interest on a credit
purchased of ₱30,000 at 8% for
10 and 15 months.
Solution: Interest for 10 months
•I =PRT
•= 30,000(0.08/12)(10)
•= ₱2,000
Interest for 15 months
I =PRT
• = 30,000(0.08/12)(15)
• = ₱3,000
Example 3
•Find the maturity value of a loan of
Php8,000.00 borrowed at an interest
rate of 15% if it has to be repaid for
15 months.
Solution
Example 4
•Arnold invested ₱10,000 at two
years in a bank earning the simple
interest of ₱800 per annum.
Determine the interest rate.
Solution
•I =PRT = R = I/PT
• R = (₱800)2 years
• ₱10,000(2)
• R = 0.08 = 8%
Example 5
•What is the principal amount if the
interest earned is ₱54,000, the
interest rate is 12% and the time is 3
years?
Solution
•I =PRT = P = I/RT
• = ₱54,000/0.12(3)
• = ₱150,000
Post Activity
•https://quizizz.com/admin/quiz/5fc7209
8adb029001f605692/post-activity
• What have you
learned today?
•Why is saving money
so important?
Thank you for listening!
God bless!
Title Lorem Ipsum
LOREM IPSUM DOLOR SIT
AMET, CONSECTETUER
ADIPISCING ELIT.
NUNC VIVERRA IMPERDIET
ENIM. FUSCE EST. VIVAMUS A
TELLUS.
PELLENTESQUE HABITANT
MORBI TRISTIQUE SENECTUS
ET NETUS.

Bus math lesson 6 interest

Editor's Notes

  • #5 What do you observe about the picture? How does the interest rate affects the amount you borrowed? What will happen to the total value you have paid? 3. How does the interest rate affects your finances? 4. Is it important to know the interest rate and the maturity value of your borrowed money? Why?
  • #6 The Philippine central bank unexpectedly lowered its benchmark interest rate by 25 bps to 2.0 percent during its November meeting, defying market expectations of an unchanged rate. The interest rates on the overnight deposit and lending facilities were also reduced to 1.5 percent and 2.5 percent, respectively. Policymakers voiced concerns about the resurgence of COVID-19 cases globally, while muted business and household sentiment in the Philippines and the impact of recent natural calamities could pose strong headwinds to the recovery of the economy in the coming months. Meanwhile, inflation expectations remaining firmly anchored within the target range of 2-4 percent.