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

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

Principal = $ 1500,

Interest = $ 450,

Rate = 5% p.a.

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

= (100 × 450)/(1500 × 5)

= 45000/7500

= 6.

Therefore, Time (T) = 6 years.

**2.** Find Time when, Principal = $ 2000; Interest = $ 600; Rate = 3% p.a.

*Solution:*

Principal = $ 2000,

Interest = $ 600,

Rate = 3% p.a.

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

= (100 × 600)/(2000 × 3)

= 60000/6000

= 10

Therefore, Time (T) = 10 years.

**3.** Find Time when, Principal = $ 3500; Interest = $ 700; Rate = 4% p.a.

*Solution:*

Principal = $ 3500,

Interest = $ 700,

Rate = 4% p.a.

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

= (100 × 700)/(3500 × 4)

= 70000/14000

= 5

Therefore, Time (T) = 5 years.

**Word Problems on Simple 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 Factors affecting Interest**

**5th Grade Numbers Page** **5th Grade Math Problems** **From To find Time when Principal Interest and Rate are given to HOME PAGE**

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