Practice Formulas (1.2.2) - Commercial Mathematics - ICSE 10 Maths
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Practice - Formulas - 1.2.2

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Practice Questions

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Question 1 Easy

What is the formula to calculate interest in a recurring deposit?

💡 Hint: Remember, P is monthly deposit, n is the time in months.

Question 2 Easy

Define what a Recurring Deposit Account is.

💡 Hint: Think about monthly contributions.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the formula for calculating interest in a Recurring Deposit?

I = \\( P \\times r \\times \\
t \\)
I = \\( \\frac{P \\times n(n+1) \\times r}{2 \\times 12 \\times 100} \\)
I = \\( P + r \\)

💡 Hint: Think about how deposits earn over different months.

Question 2

True or False: The maturity value is just the total deposits made.

True
False

💡 Hint: Recall the formula for Maturity Value.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A student deposits a fixed amount every month. After 5 months, they've saved ₹5,000 with an interest of ₹500. If the deposits are constant, what will be the expected savings after 12 months?

💡 Hint: Use the relationship of monthly deposits and time to find final values.

Challenge 2 Hard

If a bank offers a deposit scheme where the interest is based on quarterly compounding for deposits under 10,000 but simple interest for deposits above, how would you calculate the effective interest a student receives after depositing ₹8,000 for a year under these rules?

💡 Hint: Look into both interest calculation strategies.

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