Question

Principal-3000, years-3,rate of interest-5.
principal-1500, years-2,rate of interest-7.
principal-3600,years-2,rate of interest-5.

Answer 1

Answer:

SI for first one= 3000×3×5/100 =450

SI for second one = 1500×2×7/100 = 210

SI for third one = 3600×2×5/100 = 360

Answer 2

1.$S.I_1=450$

2.$S.I_2=210$

3.$S.I_3=360$

Step-by-step explanation:

We know that ,

$Simple\ interest=\frac{P\times R\times T}{100}$

where,P=principal,r=Rate of Interest,T=time

1.Principal-3000, years-3,rate of interest-5

$S.I_1=\frac{3000\times 5\times 3}{100}$           $S.I_1= \frac{45000}{100}$

$S.I_1=450$

2.Principal-1500, years-2,rate of interest-7

$S.I_2=\frac{1500\times 7\times 2}{100}$

$S.I_2=\frac{21000}{100}$

$S.I_2=210$

3.Principal-3600,years-2,rate of interest-5

$S.I_3=\frac{3600\times 5\times 2}{100}$

$S.I_3=\frac{36000}{100}$

$S.I_3=360$