If rupees 7000 is given at 7% p.a. rate of interest then then the rupees which will be received at the end of 3 years is :
i. rs. 1400
ii. 1470
iii. 1455
iv. 1410
Answers
Answered by
0
Answer:
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Step-by-step explanation:
Let the rate of interest =R%p.a.
In the first 3yrs,
principal =P=Rs7000, Time T=3yrs.
Then the interest =I
1
=
100
PRT
=
100
7000×R×3
=210R.
In the next (5-3)yrs=2yrs,
Pricipal =P=RS(7000−3000)=RS4000, Time =T=2yrs.
Then, the interest=I
2
=
100
PRT
=
100
4000×R×2
=80R.
∴ the total amount returned this time
=Rs(4000+I
1
+I
2
)=Rs5450
⟹4000+210R+80R=5450
⟹29R=1450
⟹R=5p.c.p.a.
So the rate of interest=5% p.a.
Answered by
3
Answer:
ii)1470
Step-by-step explanation:
Here Principle (P)=7000, Rate of interest (R)=7% ,Time (T)= 3 years.
We know, Simple Interest = PTR/100
= 7000*3*7/100
=1470
Hope it helps !!
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