Question

A borrows 8000 at 12% per annum simple interest and B borrows 9100 at 10% per
annum simple interest. In how many years will their amounts be equal?​

Answer 1

Step-by-step explanation:

Amount - 8000

Rate 12%

Let year x

⇒ Amount = SI

A

+P

A

⇒

100

8000×12×x

B

Amount 9100

Rate 10%

let year x

Amount

B

=SI

B

+P

B

100

9100×10×x

⇒960x+8000=910x+9100

960x−910x=9100−8000

50x=1100

x=22