Question

the simple interest on an amount for 3 years is 150 more if the rate of interest is 6% per annum than the simple interest on the same amount for 3 years at the rate of interest 5% per annum.find the principal.

​

Answer 1

Step-by-step explanation:

⇒ Here, we have T=3years,R=5% and S.I.=Rs.600

⇒ S.I.=

100

P×R×T

⇒ 600=

100

P×5×3

∴ P=

5×3

600×100

=Rs.4000.

⇒ Now, taking P=Rs.4000,T=3years and R=5%

⇒ A=P(1+

100

R

)

T

⇒ A=4000×(1+

100

5

)

3

⇒ A=4000×(

20

21

)

3

⇒ A=

8000

4000×9261

=Rs.4,630.50

∴ The required amount is Rs.4,630.50

hope it's helpful (◍•ᴗ•◍)❤

Answer 2

Answer:

the simple interest on an ammount for 3 years is ₹ 150 more if the rate of interest in 6% per annum than the simple interest on the same ammount for 3 years at the rate of interest 5% per annum. find the principal.