To find Principal when Time Interest and Rate are given


To find Principal when Time Interest and Rate are given the rules are.

Interest = (Principal × Rate × Time)/100

Principal = (100 × Interest)/(Rate × Time)


For example:

1. Find Principal when Time = 3 years, Interest = $ 600; Rate = 4% p.a.

Solution:

Time = 3 years,

Interest = $ 600,

Rate = 4% p.a.

Principal = (100 × Interest)/(Rate × Time)

= (100 × 600)/(4 × 3)

= 60000/12

= 5000

Therefore, Principal (P) = $ 5000.



2. Find Principal when Time = 5 years, Interest = $ 500; Rate = 5% p.a.


Solution:

Time = 5 years,

Interest = $ 500,

Rate = 5% p.a.

Principal = (100 × Interest)/(Rate × Time)

= (100 × 500)/(5 × 5)

= 50000/25

= 2000

Therefore, Principal (P) = $ 2000.




3. Find Principal when Time = 4 years, Interest = $ 400; Rate = 5% p.a.

Solution:

Time = 4 years,

Interest = $ 400,

Rate = 5% p.a.

Principal = (100 × Interest)/(Rate × Time)

= (100 × 400)/(5 × 4)

= 40000/20

= 2000

Therefore, Principal (P) = $ 2000.

● Simple Interest.

Word Problems on Simple Interest.

Factors Affecting Interest

In Simple Interest when the Time is given in Months and Days.

To find Principal when Time Interest and Rate are given.

To find Rate when Principal Interest and Time are given .

To find Time when Principal Interest and Rate are given.

Worksheet on Simple Interest.

Worksheet on Factors affecting Interest







5th Grade Numbers Page

5th Grade Math Problems

From To find Principal when Time Interest and Rate are given to HOME PAGE


New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.



Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.