What is the Principal Sum invested if a simple
interest of Rs.10,000 is earned at 8 p.c.p.a at
the end of 4 years?
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Answer:
Interest = Rs 10,000
Rate of interest = 10 p.c.p.a
Simple Interest=Principal ×Rate×Time100
⇒10,000=p×10×n100⇒10,000=p×n10
⇒ p × n = 1,00,000
Possible set of values are
(1) Principal = Rs 50,000
Number of Years = 2 (as 50000×2 = 100000)
(2) Principal = Rs 1,00,000
Number of Years = 1 (as 100000×1 = 100000)
(3) Principal = Rs 10,000
Number of Years = 10 (as 10000×10 = 100000)
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