Question

how to find time of intrest- formula ,give example

Answer 1

Answer:

I = Prt where

The Principal (P) is the amount of money deposited or borrowed. The Interest Rate (r) is a percent of the principal earned or paid. The Time (t) is the length of time the money is deposited or borrowed.

STEP BY STEP EXPLANATION

Calculate Interest, solve for I. I = Prt.

Calculate Principal Amount, solve for P. P = I / rt.

Calculate rate of interest in decimal, solve for r. r = I / Pt.

Calculate rate of interest in percent. R = r * 100.

Calculate time, solve for t. t = I / Pr.

Answer 2

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

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

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

Examples to find Time (T) when Principal (P), Interest (I) and Rate (R) are given:

1. Find Time when, Principal = $

1500; Interest = $ 450;

Rate = 5% p.a.

Solution: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.