A sum of money lent at simple interest
amounts to 17,145 in 3 years and to
19,575 in 5 years. Find the sum and the
rate of interest
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A sum of money lent at simple interest
amounts to 17,145 in 3 years and to
19,575 in 5 years. Find the sum and the
rate of interest
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Answer:
8 %
Step-by-step explanation:
Amount after 2 years =Rs.783
Amount after 3 years =Rs.837
Therefore,
S.I. of 1 year =837−783=Rs.54
⇒ S.I. of 2 years =54×2=Rs.108
Principal sum =783−108=Rs.675
Therefore,
S.I.=
100
PRt
⇒54=
100
675×R×1
⇒R=
675
54×100
=8%
Answer:
a sum of money lent at simple interest amounts to rupees 17145 in 3 ... 19575 in 5 years find the sum and the rate of interest ... So, S.I for 3 years = 17145 - p ---- eqn 1.
The sum is Rs.13500 and rate of interest is 9%Solution:Let the sum be "p" and rate of interest is "r"Amount (A) = Principle (P) + Simple Interest (I) So,