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किसी राशि पर 10 % वार्षिक की दर से 2 वर्ष का चक्रवृद्धि ब्याज रुपया 525 है | उसी राशि पर दोगुने समय तथा आधी दर पर साधारण ब्याज कितना होगा ?
A. Rs. 520
B. Rs. 550
C. Rs. 500
D. Rs. 515

1 Answer

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Best answer
Correct Answer - c
(c) `10% = (1)/(2)`, Let `P =(10)^(2)= 100`
image
Total C.I. = 21 unt = 525
1 unit = 25
P = 100 unit `= 100 xx 25 = 2500`
New Time = 4 years and rate = 5%.
`S.I= (2500 xx 4 xx5)/(100)`
`S.I= ₹ 500`

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