1. Find the interest in the following problems :
(i) Principal = 500; Rate = 8% per annum; Time = 3 years.
(ii) Principal = 800; Rate = 1.5% per month; Time = 1.3 years.
(i) Principal = 400; Rate = 20 paise per rupee per annum; Time = 6 months.
(iv) Principal = 300; Rate = 12% per annum; Time = 8 months.
Find also the amount in each case.
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Answers
Answer:
Step-by-step explanation:
1.
principal = 500
rate = 8%
time = 3 yrs
S.I. = p * t * r/100 = 500 * 8 * 3/100 = 120
amount = S.I + principal = 500 +120 = 620
2.
principal = 800
rate = 1.5 %
time =1.3 yrs
S.I. = p * t * r/100 = 800 * 1.5 * 1.3 /100 = 306/10 = 30.6
amount = S.I + principal = 800 + 30.6 = 830.6
3.
principal = 400
rate = 20 paisa = 20/100 = 1/5
time = 6 month
S.I. = p * t* r /100 = 400 * 6 * 1/ 5 * 100 = 24/5 = 4.8
amount = S.I + principal = 400 + 4.8 = 404.8
4.
principal = 300
rate = 12 %
time = 8 month
S.I. = p * t * r /100 = 300 * 12 * 8 / 100 = 36 * 8 = 288
amount = S.I + principal = 300 + 288 = 588
hope it helps you very well
Answer:
187.2
Step-by-step explanation:
aP=500
R=8%
T=3yr
solve 500*8*3/100=120
b P=800
R=1.5
T=1.3yr
solve
R=1.5%per month
(1.5*12) =18%per year
T=1.3
800*18*1.3/100=187.2
Ans=187.2