Question

Shamm borrowed Rs.800 at 6 % p.a and Rs.1200 at 7% p.a for the same duration. He had to pay Rs. 1584 in all as intrest. find the time period​

Answer 1

Answer:

12 years

Step-by-step explanation:

Given,

Shamm borrowed Rs.800 at 6 % p.a  and Rs.1200 at 7% p.a for the same duration.

let P1=800

p2=1200

r1=6%

r2=7%

here T is same

He had to pay Rs. 1584 in all as interest.

we know,

SI=PTR/100

P1*R1*T/100+P2*R2*T/100=1584

800*6*T/100+1200*7*T/100=1584

48T+84T=1584

132T=1584

T=12 yrs