Math Problem Statement
. Divide ` 6000 into two parts so that simple interest on the first part for 2 years at 6% p.a. may be equal to the simple interest on the second part for 3 years at 8% p.a.
Solution
We are tasked with dividing ₹6000 into two parts, such that the simple interest on the first part for 2 years at 6% per annum is equal to the simple interest on the second part for 3 years at 8% per annum.
Let the two parts be:
- The first part: ₹
- The second part: ₹
Simple Interest Formula:
The formula for simple interest (SI) is: where:
- is the principal amount,
- is the rate of interest per annum,
- is the time in years.
Step 1: Calculate the simple interest for the first part.
For the first part, the principal is ₹, the rate is 6%, and the time is 2 years. The simple interest is:
Step 2: Calculate the simple interest for the second part.
For the second part, the principal is ₹, the rate is 8%, and the time is 3 years. The simple interest is:
Step 3: Set up the equation for equality of interest.
We are given that the simple interest on both parts is equal:
Step 4: Solve for .
-
Multiply both sides by 25 to eliminate the fraction on the left side:
-
Move all terms involving to one side:
-
Solve for :
Step 5: Determine the second part.
The second part will be:
Final Answer:
The two parts of ₹6000 are ₹4000 and ₹2000.
Would you like a more detailed explanation or have any questions on the steps? Here are some related questions:
- How can we use the compound interest formula to calculate interest for the same scenario?
- How would the solution change if the interest rates were different for each part?
- How does the time period affect the calculation of simple interest?
- What happens to the distribution of ₹6000 if the interest rates are reversed (6% for 3 years and 8% for 2 years)?
- How can we generalize this problem to work for more than two parts?
Tip: Always check the units of time and rate in the interest formula to make sure they are consistent (e.g., years and percentage per annum).
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Math Problem Analysis
Mathematical Concepts
Simple Interest
Algebra
Formulas
SI = (P * R * T) / 100
Theorems
-
Suitable Grade Level
Grades 7-9
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