Question

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

Answer 1

Answer:

AACHA LAGA THO BRILLIANSIT ANSWER PAR CLICK KARE AUR FOLLOW ME

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.

Answer 2

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 !!