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कोई धनराशि निवेश के लिए 20 % चक्रवृद्धि ब्याज पर दी जाती है (ब्याज की गड़ना छमाही रूप से की जाती है) यदि ब्याज की गड़ना छमाही रूप से की जाये तो रु. 723 अधिक मिलते है | बताइये वह धनराशि क्या है ?
A. Rs. 72,300
B. Rs.30,000
C. Rs.20,000
D. Rs. 7,500

1 Answer

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Best answer
Correct Answer - a
(a) Let Principle = 400
For 1 years at `20%` rate the intreset is `=400 xx(20)/(100) = 80`
If compounded half yearly then
`r = (20)/(2) -= 10% = (1)/(100)`
T= 2 (6 month )
image
` 4 to 723`
`1 to (723)/(4)`
` 400 = (723)/(4) xx 400`
`= 72300 ("sum")`

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