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Phrases Previous Year Questions (PYQs)
Phrases Interest PYQ
Phrases PYQ
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Phrases Previous Year PYQ Phrases CUET 2023 PYQ
So, Simple Interest (SI) = \( 2P - P = P \)
Use the formula:
$$\text{SI} = \frac{P \cdot R \cdot T}{100}$$ Substituting values: $$P = \frac{P \cdot R \cdot 10}{100}$$ Cancel \( P \) on both sides: $$1 = \frac{R \cdot 10}{100} \Rightarrow R = \frac{100}{10} = \boxed{10\%}$$
Final Answer:
$$\boxed{10\% \text{ per annum}}$$
A sum of money doubles itself on simple interest in 10 years.
Find the rate of interest per annum.
Go to Discussion
Phrases Previous Year PYQ Phrases CUET 2023 PYQ
Solution
Let the principal be \( P \).
Since the money doubles in 10 years, the total amount becomes \( 2P \).So, Simple Interest (SI) = \( 2P - P = P \)
Use the formula:
$$\text{SI} = \frac{P \cdot R \cdot T}{100}$$ Substituting values: $$P = \frac{P \cdot R \cdot 10}{100}$$ Cancel \( P \) on both sides: $$1 = \frac{R \cdot 10}{100} \Rightarrow R = \frac{100}{10} = \boxed{10\%}$$
Final Answer:
$$\boxed{10\% \text{ per annum}}$$
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