a sum of money becomes of 4/3 in 5 years at a certain rate of interest find the rate of interest
Answers
Answered by
0
Answer:
the rate of interest is 5.56
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Step-by-step explanation:
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Answered by
0
Answer:
Let Principal = Rs. x = Amount in 5 years = Rs .2x
A=P(1+
100
r
)
n
⇒2x=x(1+
100
r
)
5
⇒2=(1+
100
r
)
5
For the second part : P= Rs x and A = Rs. 8x
∴A=P(1+
100
r
)
n
⇒8x=x(1+
100
r
)
n
⇒8=(1+
100
r
)
n
i.e. (2)
3
=(1+
100
r
)
n
⇒[(1+
100
r
)
5
]
3
=(1+
100
r
)
n
[∵2=(1+
100
r
)
5
]
⇒(1+
100
r
)
15
=(1+
100
r
)
n
⇒n=15
i.e. Time Required = 15 years
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