പ്രതിവർഷം 5% നിരക്കിൽ 2 വർഷത്തേക്ക് 1,000 രൂപയ്ക്കുള്ള സാധാരണ പലിശ അതേ പലിശ നിരക്കിൽ 4 വർഷത്തേക്ക് കൂട്ടുപലിശയിൽ നിക്ഷേപിക്കുന്നു. സാധാരണ പലിശയുടെ കൂട്ടുപലിശ എന്താണ്?

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RRB ALP Electrician 22 Jan 2019 Official Paper (Shift 3)
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  1. ₹ 121.55
  2. ₹ 25
  3. ₹ 125
  4. ₹ 21.55

Answer (Detailed Solution Below)

Option 4 : ₹ 21.55
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നൽകിയിരിക്കുന്നത്:

തുക = Rs. 1000

നിരക്ക് = 5%

കാലയളവ് = 2 വർഷം

ആശയം:/സൂത്രവാക്യം:

SI = P × r × t/100

A = P (1 + r/100)t

P = മുടക്കുമുതൽ, r = നിരക്ക് and t = കാലയളവ്

Calculation:

SI = (1000 × 2 × 5)/100

⇒ SI = 100

ചോദ്യം അനുസരിച്ച്,

A = 100 (1 + 5/100)4

⇒ A = 100 × 21/20 × 21/20 × 21/20 × 21/20

⇒ A = 121.55

⇒ CI = 121.55 – 100 = 21.55

∴ ആവശ്യമായ കൂട്ടുപലിശ = 21.55 രൂപ
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