Question

A sum of money invested at simple interest amounts to rs 2832 at the end of three years and rs 3120 at the end of five years. Find the principal
Please solve this step by step

Answer 1

may this helps u ....

Answer 2

Answer:

Step-by-step explanation:

Simple Interest SI= P*T*R/100

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Also Amount A=P+SI

So, for three years,

2832−P= P×3×R /100 -- (1)

And, for five years,

3120−P = P×5×R/100 -- (2)

Subtracting eqn 1 from eqn 2, we get

=>288= 2*P*R/100

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=>PR=14400

Substituting it in eqn 2, we get

3120−P= 5×14400/100

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=>P=Rs 2400