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Teaching Exam  >  Teaching Questions  >  Rs. 6,000 becomes Rs. 7,200 in 4 years. If th... Start Learning for Free
Rs. 6,000 becomes Rs. 7,200 in 4 years. If the rate becomes 1.5 times of itself, the amount of the same principal in 5 years will be 
  • a)
    Rs. 8,000 
  • b)
    Rs. 9,000 
  • c)
    Rs. 9,250 
  • d)
    Rs. 8,250 
Correct answer is option 'D'. Can you explain this answer?
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Rs. 6,000 becomes Rs. 7,200 in 4 years. If the rate becomes 1.5 times ...
 
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Rs. 6,000 becomes Rs. 7,200 in 4 years. If the rate becomes 1.5 times ...
Understanding the Problem
- Principal Amount (P): Rs. 6,000
- Amount after 4 years (A): Rs. 7,200
- Time (T): 4 years
Calculating the Rate of Interest
1. Interest Earned:
- A - P = 7,200 - 6,000 = Rs. 1,200
2. Rate of Interest (R):
- Using the formula:
- Simple Interest (SI) = (P * R * T) / 100
- Rearranging gives:
- R = (SI * 100) / (P * T)
- R = (1,200 * 100) / (6,000 * 4) = 5%
New Rate of Interest
- If the rate becomes 1.5 times itself:
- New Rate (R') = 1.5 * 5% = 7.5%
Calculating the Amount in 5 Years
1. New Time (T'): 5 years
2. Using the formula for Amount (A):
- A' = P + SI
- SI' = (P * R' * T') / 100
- SI' = (6,000 * 7.5 * 5) / 100 = Rs. 2,250
3. Total Amount:
- A' = P + SI' = 6,000 + 2,250 = Rs. 8,250
Conclusion
- Therefore, the amount of the same principal in 5 years, when the rate becomes 1.5 times itself, is Rs. 8,250. The correct answer is option D.
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Rs. 6,000 becomes Rs. 7,200 in 4 years. If the rate becomes 1.5 times of itself, the amount of the same principal in 5 years will bea)Rs. 8,000b)Rs. 9,000c)Rs. 9,250d)Rs. 8,250Correct answer is option 'D'. Can you explain this answer?
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Rs. 6,000 becomes Rs. 7,200 in 4 years. If the rate becomes 1.5 times of itself, the amount of the same principal in 5 years will bea)Rs. 8,000b)Rs. 9,000c)Rs. 9,250d)Rs. 8,250Correct answer is option 'D'. Can you explain this answer? for Teaching 2025 is part of Teaching preparation. The Question and answers have been prepared according to the Teaching exam syllabus. Information about Rs. 6,000 becomes Rs. 7,200 in 4 years. If the rate becomes 1.5 times of itself, the amount of the same principal in 5 years will bea)Rs. 8,000b)Rs. 9,000c)Rs. 9,250d)Rs. 8,250Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Teaching 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Rs. 6,000 becomes Rs. 7,200 in 4 years. If the rate becomes 1.5 times of itself, the amount of the same principal in 5 years will bea)Rs. 8,000b)Rs. 9,000c)Rs. 9,250d)Rs. 8,250Correct answer is option 'D'. Can you explain this answer?.
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