எவ்வளவு காலத்தில்160000 ரூபாய் என்ற அசல் 25% கூட்டு வட்டியில் 390625 ரூபாயாகும்  ?

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SSC CGL Tier II Memory Based Test (6th March 2023)
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  1. 8 ஆண்டுகள்
  2. 4 ஆண்டுகள்
  3. 7 ஆண்டுகள்
  4. 2 ஆண்டுகள்

Answer (Detailed Solution Below)

Option 2 : 4 ஆண்டுகள்
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Detailed Solution

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கொடுக்கப்பட்டது:

தொகை A = ரூ. 390625

அசல் P = ரூ. 160000

வட்டி விகிதம் R = 25%

பயன்படுத்திய சூத்திரம்:

கூட்டு வட்டி மீதான தொகை

A = P(1 + \(\frac{R}{100}\) )t

கணக்கீடு:

A = P(1 + \(\frac{R}{100}\) )t

⇒ 390625 = 160000(1 + \(\frac{25}{100}\))

⇒ \(\frac{390625}{160000}\) = (1 + \(\frac{1}{4}\))t

⇒ \(\frac{625}{256}\) = (\(\frac{5}{4}\))t

⇒ (\(\frac{5}{4}\))4 = (\(\frac{5}{4}\))t

⇒ t = 4

∴ கலாம் t = 4 ஆண்டுகள்.

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