Question

. The difference between SI and CI for 2 years @ 20% per annum is
8. What is the principal?
Ans:​

Answer 1

Answer :

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Difference between SI and CI for 2 years =

$\begin{gathered}\begin{gathered}: \implies \underline{ \boxed{\displaystyle \sf \bold{\: P \: = \: \binom{R} { 100}^{2} }} }\\ \\\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}: \implies \displaystyle \sf \: 8 \: = \: P \: \binom{20}{100}^{2} \\ \\ \\\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}: \implies \displaystyle \sf \: 8 \: = \: P \: \binom{1}{5}^{2}\\ \\ \\\end{gathered}\end{gathered}$

1. (5)² = 25
2. we will shift 8 to right side.

$\begin{gathered}\begin{gathered}: \implies \displaystyle \sf \: P \: = \: 8 \: × \: 25 \\ \\ \\\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}: \implies \underline{ \boxed{\displaystyle \sf \bold{\: Principal \: = \: ₹ 200}} }\\ \\\end{gathered}\end{gathered}$

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Answer 2

Answer:

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Step-by-step explanation: