Question

How to get the principal amount in simple interest?

Answer 1

Answer:

Simple Interest = Principal × Rate of Interest × Time Period / 100

⇒ Simple Interest × 100 = Principal × Rate of Interest × Time Period

⇒ ( Simple Interest × 100 ) / ( Rate of Interest × Time Period ) = Principal

$\implies Principal = \dfrac{Simple\: Interest \times 100}{Rate \% \times Time \: Period}$

Hence Principal can be found by multiplying Simple interest with 100 and dividing the product by the product of Rate % and Time Period.

Answer 2

There you go bud....Use the formulae given below to find the Principal Amount in Simple Interest:

Let  A be the Total Amount

Lt the Rate be r% p.a.

Let the Time be t years

∴The Principal amount(P)=A/(1+r*t)

Hope it helps...;^)