Question

What sum will amount to ₹6600 in
4 yrs at 8% per annum simple interest?
options
(1) ₹6000
(2) ₹5000
(3) ₹4000
(4) ₹6200​

Answer 1

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎$‎ \mathtt{\bf{\small{\underline {\red{Required\: answer \: :- }}}}}$

‎ ‎$\sf{\underline{option \; (2) \; is\; correct\; }}$

P = principle Amount

n = number of years

r = Rate of interest

‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎$\begin{gathered}:\implies \sf \: total \: amount = 6600 \\\\:\implies \sf n = 4 \: years\\\\:\implies \sf r = rate \: of \: intrest \\\\:\implies \sf we \: have \: to \: find \: amount \end{gathered}$

‎ ‎ ‎ ‎ ‎ ‎ ‎$\begin{gathered}:\implies \sf \: 6600 = p + \frac{p \times 4 \times 8}{100} \\\\:\implies \sf 6600 = p + \frac{32p}{100} \\\\:\implies \sf 6600 = p + \frac{8p}{25} \\\\:\implies \sf 165000 = 33p\\\\:\implies \underline{\boxed{\frak{\purple{ p =5000 }}} }\; \bigstar\end{gathered}$

                    ____________