मराठी

In how many years will ₹ 7500 borrowed at 20% p.a. compounded yearly will amount to ₹ 10800? - Mathematics

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प्रश्न

In how many years will ₹ 7500 borrowed at 20% p.a. compounded yearly will amount to ₹ 10800?

पर्याय

  • 1 year

  • `1^(1//2)` years

  • 2 years

  • 3 years

MCQ
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उत्तर

2 years

Explanation:

Step 1: Compound interest formula

`A = P(1 + r/100)^n`

Where:

  • A = 10,800 (Amount after n years)
  • P = 7,500 (Principal)
  • r = 20%
  • n = ? (Number of years)

Step 2: Substitute values

`10,800 = 7,500(1 + 20/100)^n`

`10,800 = 7,500 xx (1.2)^n`

Step 3: Divide both sides by 7,500

`(10,800)/(7,500) = (1.2)^n`

`1.44 = (1.2)^n`

Step 4: Solve for n

We know that:

1.22 = 1.2 × 1.2

= 1.44

∴ n = 2

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Compound Interest - MULTIPLE CHOICE QUESTIONS [पृष्ठ २८]

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बी निर्मला शास्त्री Mathematics [English] Class 9 ICSE
पाठ 2 Compound Interest
MULTIPLE CHOICE QUESTIONS | Q 3. | पृष्ठ २८
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