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तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएस.एस.एल.सी. (इंग्रजी माध्यम) इयत्ता ८

The sum which amounts to ₹ 2662 at 10% p.a in 3 years, compounded yearly is _________ - Mathematics

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प्रश्न

The sum which amounts to ₹ 2662 at 10% p.a in 3 years, compounded yearly is _________

पर्याय

  • ₹ 2000

  • ₹ 1800

  • ₹ 1500

  • ₹ 2500

MCQ
रिकाम्या जागा भरा
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उत्तर

₹ 2000

Explanation;

Hint:

Amount = ₹ 2662

Rate of interest = 10% p.a

Time period = 3 years ...[Compounded yearly]

Principal (P) → required to find?

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

2662 = `"P"(1 + 10/100)^3`

= `"P"((100 + 10)/100)^3`

2662 = `"P"(110/100)^3`

2662 = `"P"(11/10)^3`

∴ P = `(2662 xx 10 xx 10 xx 10)/(11 xx 11 xx 11)`

= 2 × 10 × 10 × 10

= ₹ 2000

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पाठ 4: Life Mathematics - Exercise 4.3 [पृष्ठ १४०]

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सामाचीर कलवी Mathematics [English] Class 8 TN Board
पाठ 4 Life Mathematics
Exercise 4.3 | Q 14 | पृष्ठ १४०
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