A sum of Rs. 4321 amounts to Rs. 6481.5 in 8 years at the rate of simple interest. What is the rate

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21 Feb 2017 Simple Interest

A sum of Rs. 4321 amounts to Rs. 6481.5 in 8 years at the rate of simple interest. What is the rate of interest?

OPtion

1) 5.5 %
2) 5.75 %
3) 6.0 %
4) 6.25 %
5) 6.5 %
6) 6.75 %
7) 7.0 %
8) 7.25 %
9) 7.5 %
10)None of these

Solution

S.I. = Rs. (6481.5 - 4321) = Rs. 2160.5

Rate = (2160.5*100)/(4321*8)

Rate = (555.5*100)/(1111*4) = 100/16 = 6.25 %
Option 4)

Correct Option: 4 Best Solution (25)

G.S.Kantharao   7 years AGO

R=100I/PT
A=6481.5
P=4321
I=A-P=6481.5-4321=2160.5
R=100*2160.5/4321*8
=6.25
Hence the right option is 4.

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somveer   7 years AGO

Here is
A=6481.5, P=4321, T=8yr
so S.I=2160.5
Now, R=(S.I.×100)/(P×T)
=(2160.5×100)/(4321×8)
=6.25% ans.

Like? Yes (1) | No   

Nitish kesarwani   7 years AGO

A= P +I
6481.5 = 4321 + 4321*R*8/100
216.5/4321=8*R/100
So R =50/8 =6.25
Optn 4

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anshu shrivastava   7 years AGO

p=4321
a=6481.5
a=p+s.i
6481.5=4321+s.i
s.i=2160.5
s.i=p×t×r/100
2160.5=4321×8×r/100
2160.5×100=4321×8×r
r=216050/4321×8........(4321×5=21605)
r=50/8
r=6.25%

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Harsh Poddar   7 years AGO

Simple interest=6481.5-4321=2160.5
I=PRT/100
2160.5=(4321×r×8)/100
Solving r=6.25
Option 4

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PRABHAT KUMAR   7 years AGO

interest=6481.5-4321=2160.5
therefore,rate=(2160.5*100)/(4321*8)
6.25℅
option 4

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Mukund Manohar   7 years AGO

Interest = 6481.5 - 4321 = 2160.5
Rate of Interest = (2160.5 * 100)/(4321 * 8)
= 216050/34568 = 6.25%

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shashikanth reddy palla   7 years AGO

W.K.T sum=s.i.+ amount--1eqn
given sum=6481.5,t=8,amount=4321
now, s.i.=(ptr)/100;
substitute in 1eqn
6481.5=(4321*8*r)/100+4321
therefore we get r=6.25%

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sindhu   7 years AGO

SI=(p*t*r)/100
SI=6481.5-4321=2160.5
2160.5=(4321×8×r)/100
R=6.25%

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DIVYANSHU SHEKHAR   7 years AGO

Si : (6481.5-4321) :2160.5 r:(2160.5*100)/(4321*8) :6.25%

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Yogesh shukla   7 years AGO

interest amount=6481.5-4321=2160.5
2160.5=(4321*8*r)/100
=> r=6.25%

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Pragati Rode   7 years AGO

Simple Interest = 6481.5 - 4321 = 2160.5

Rate of interest = (100 * SI)/(P * N)
= (2160.5*100)/(4321 * 8) =216050/34560
= 6.25%
so option is 4

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Ajay Sharma   7 years AGO

p=4321
let rate=r
time=8
amount=6481.5
so interest=6481.5-4321=2160
so (p*r*t)/100=2160.5
=6.25

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sapana manjarekar   7 years AGO

S.I. =6481.5-4321
=2160.5
r=((100*S.I.)/(P*T))
Rate=((100*2160.5)/(4322*8))
=(216050/34568)
=6.25

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himabindu   7 years AGO

simple interest =PTR /100
p=4321, T=8, S.I=2160.5
2160.5= 4321*8*R/100
R=2160.5*100/4321*8 = 6.25%

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Piyushi   7 years AGO

Here amount=6481.5 principal=4321

A=P+S.I
6481.5=4321+S.I.
S.I.=2160.5

Then R=S.I.*100/P*T

Putting values and after solving this we get R=6.25%

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shivani shanishchara   7 years AGO

I=P*R*N /100----{1)
I=sum-price
=6481.5 - 4321
=2160.5
from quation (1),
R=6.25%

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RABIRANJAN KUMAR SINGH   7 years AGO

4321----------------------8--------------6481.5
si = 6481.5-4321= 2160.5

2160.5 *100 = 4321 * 8 *R

r =6.25 ans

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aditi roy   7 years AGO

p + s.i=6481.5,p=4321,t=8
hence, s.i=( 6481.5-4321)=2160.5
we know, s.i= (p*t*r)/100
hence r=(2160.5*100)/(4321*8)=6.25

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yamini velaga   7 years AGO

total interest paid for 8 years = 6481.5 - 4321 = 2160.5 rupees
intetest paid for 1 year = (2160.5 ÷ 8) = 270.0625 rupees
rate of interest = ( 270.0625 ÷ 4321 ) × 100 = 6.25 %

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Athulya   7 years AGO

8*6.25=50%
50% of 4321 is 2160.5
2160.5 + 4321 is 6481.5

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VISHAL.MORI   7 years AGO

I=PRN/100

2160.5=(4321*8)*R

R=6.25%

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Amarnath Kumar Upadhyay   7 years AGO

I=A-P
6481.5-4321=2160.5
4321*R*8/100=2160.5
R=6.25%

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Mathi Vanan P   7 years AGO

a=P(1+rt)
substitue the value of a=6481.5
p=4321
t=8
we will get r=((a-p)/(pt))*100
=((6481.5-4321)/(4321*8))*100
=(0.0625)*100
=6.25

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Jebas Gnana Prakash E   7 years AGO

=((6481.5-4321)/(4321*8))*100
=.0625*100
=6.25

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