Indian Overseas Bank LBO Mock 03 – Question 54

Question:

A sum of Rs 20,000 is deposited in a bank offering an annual compound interest rate of 20% compounded half-yearly for 1.5 years. What is the total compound interest earned at the end of the period?

(a) Rs 5,800

(b) Rs 6,240

(c) Rs 6,400

(d) Rs 6,620

(e) Rs 7,120

20,000 रुपये की राशि 1.5 वर्ष के लिए अर्धवार्षिक रूप से संयोजित 20% की वार्षिक चक्रवृद्धि ब्याज दर की पेशकश करने वाले बैंक में जमा की जाती है। अवधि के अंत में अर्जित कुल चक्रवृद्धि ब्याज कितना है?

(a) 5,800 रुपये

(b) 6,240 रुपये

(c) 6,400 रुपये

(d) 6,620 रुपये

(e) 7,120 रुपये

Correct Answer: (d)

Explanation:

Principal P = Rs 20,000.
Annual Rate R = 20% => Half-yearly rate r = 10% = 0.10.
Time = 1.5 years => n = 1.5 * 2 = 3 half-years.
Amount A = P(1 + r)^n = 20,000 (1.10)^3 = 20,000 1.331 = Rs 26,620.
Compound Interest = 26,620 – 20,000 = Rs 6,620.

मूलधन P = 20,000 रुपये।
अर्धवार्षिक दर r = 10%।
अवधि n = 3 छमाही।
मिश्रधन A = 20,000 * (1.10)^3 = 26,620 रुपये।
चक्रवृद्धि ब्याज = 26,620 – 20,000 = 6,620 रुपये।

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