1. Find principal, if Amount = 3672 and Interest = 72.2. Find the simp

1.	1. Find principal, if Amount = 3672 and Interest = 72.2. Find the simple interest and amount if Principal = 3800, R = 3.5%, Time = 4 years3. Find the time, if Principal = 34800, SI = 1900, Rate p.a = 7.5%4. Find the interest on a deposit of 3650 from 3 January 2016 at the rate of 10%March 2016?5. A certain amount of money amounts to 4400 in two years and 4600 in threethe principal and rate of interest.6. Find amount, if principal = 450, Rate (p.a) = 7% Time = 5 years.
Answer» Answer: 1. Principal=Amount-Intrest P=3672-72 P=3600 2. S.I.=PRT/100 =38003.54/100 =383.54 =532 3. T=S.I.100/PR =1900100/348007.5 =190/34875 =40.9 years 4. S.I.=PRT/100 =3650103/100 =3653 =1095 5. S.I.=A-P =4600-4400 =200 R=S.I.100/PT =200100/44002 =100/44 =25/11 =2.27.. % 6. S.I.= PRT/100 =45075/100 =45*7/2 =315/2 =157.5 A=P+S.I. =450+157.5 =607.5

1. Find principal, if Amount = 3672 and Interest = 72.2. Find the simple interest and amount if Principal = 3800, R = 3.5%, Time = 4 years3. Find the time, if Principal = 34800, SI = 1900, Rate p.a = 7.5%4. Find the interest on a deposit of 3650 from 3 January 2016 at the rate of 10%March 2016?5. A certain amount of money amounts to 4400 in two years and 4600 in threethe principal and rate of interest.6. Find amount, if principal = 450, Rate (p.a) = 7% Time = 5 years.

Answer»

Answer:

1. Principal=Amount-Intrest

P=3672-72

P=3600

2. S.I.=P*R*T/100

=3800*3.5*4/100

=38*3.5*4

=532

3. T=S.I.*100/P*R

=1900*100/34800*7.5

=190/348*75

=40.9 years

4. S.I.=P*R*T/100

=3650*10*3/100

=365*3

=1095

5. S.I.=A-P

=4600-4400

=200

R=S.I.*100/P*T

=200*100/4400*2

=100/44

=25/11

=2.27.. %

6. S.I.= P*R*T/100

=450*7*5/100

=45*7/2

=315/2

=157.5

A=P+S.I.

=450+157.5

=607.5