Question

Rockey has lent out 8000 for 5 years

Answer 1

$SI=\frac{P*R*T}{100}$

$SI=\frac{8000*15*5}{100}$

     $=Rs. 6,000$

Amount = $8,000+6,000=Rs. 14,000$

Interest = $Rs. 6,000$ Amount = $Rs. 14,000$

$SI=\frac{P*R*T}{100}$

$SI=\frac{6000*12*3}{100}$

     $= Rs.2160$

Amount = $6,000+2,160=Rs.8,160$

Interest = $Rs. 21,600$  Amount = $Rs.8160$

Gain: 6,000 - 2,160

Gain = Rs. 3,840

hope this helps......

Answer 2

Answer:

SI= P∗R∗T/100

100

8000∗15∗5

=Rs.6000

Amount=8000+6000=Rs.14000

Interest =Rs.6000 , Amount=Rs.14000

SI=

100

P∗R∗T

=

100

6000∗12∗3

=Rs.2160

Amount=6000+2160=Rs.8160

Interest =Rs.21600 , Amount=Rs.8160

Gain6000−2160

Gain =Rs.3840