Question

2.
Find the principle if compound interest is Rs. 500 and amount is Rs. 700.
​

Answer 1

Answer :-

Given :-

• Compound interest = Rs. 500
• Amount = Rs. 700

To Find :-

• Principal, P

Solution :-

We know that,

Amount = Principal + Interest

Here, we are given amount and compound interest. So, by simply substituting the value in formula, we can find principal.

→ 700 = P + 500

→ P = 700 - 500

→ P = 200

Principal = Rs. 200

Answer 2

Given : Interest is Rs.500 & Amount is Rs.700 .

Need To Find : The Principal.

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❒ Let's consider the Principal be P .

$\dag\:\:\it{ As,\:We\:know\:that\::}$

$\qquad \dag\:\:\bigg\lgroup \sf{ Interest \:: Principal + Amount }\bigg\rgroup$

⠀⠀⠀⠀⠀Here Amount is Rs.700 , Interest is Rs.500 & Principal is P .

⠀⠀⠀⠀⠀⠀$\underline {\boldsymbol{\star\:Now \: By \: Substituting \: the \: known \: Values \::}}$

$\qquad \longmapsto \sf 700 = P + 500$

$\qquad \longmapsto \sf 700 - 500 = P$

$\qquad \longmapsto \frak{\underline{\purple{\:P = Rs.200 }} }\bigstar$

Therefore,

⠀⠀⠀⠀⠀$\therefore {\underline{ \mathrm {\:Principal \:is\:\bf{Rs.200\:}}}}$

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