The compound interest of Rs. 30000 at 7% per annum is Rs. 4347, the period is

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The compound interest of Rs. 30000 at 7% per annum is Rs. 4347, the period is

Answer:

B. 2

Read Explanation:

P = 30000, I = 4347, R = 7% A = P + I We know that A = P(1 + R/100)^n 34347 = 30000(1 + 7/100)^n 34347/30000 = (107/100)^n 11449/10000 = (107/100)^n (107/100)² = (107/100)^n n = 2

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ഹരിയും മാനസ്സും ഒരേ തുക 2 വർഷത്തേക്ക് ബാങ്കിൽ നിക്ഷേപിച്ചു. ഹരി 10% സാധാരണ പലിശയ്ക്കും അനസ് 10% കൂട്ടുപലിശയ്ക്കും. കാലാവധി പൂർത്തിയായപ്പോൾ 100 രൂപ കൂടുതൽ കിട്ടിയെങ്കിൽ എത്ര രൂപ വീതമാണ് നിക്ഷേപിച്ചത് ?