Math, asked by methandavidr16, 8 days ago

Two equal sums of money were lent out at 7% and 5% simple interest respectively . The interest earned out of two loans adds upto ₹ 960 for 4 years. The total sum lent out is------​

Answers

Answered by Anonymous
48

\begin{gathered}{\underline{\underbrace{\Huge{\bigstar{\textsf{\textbf{\blue{Solution :}}}}}}}}\end{gathered}

\orange{\large \qquad  \boxed{\boxed{\begin{array}{cc}  \sf Let \:  the \:  sum  \: Lent \:  be=x\\ \\  \sf {S.I.} \footnotesize{1} =  \dfrac{PRT}{100}  \\ \\ \underline{  \boxed{ \sf When,}} \\  \\   \qquad \sf R=7\% \\  \\ \qquad \sf T= 4years \\  \\  \sf   \xrightarrow{ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: }S.I. \footnotesize 1 =  \dfrac{28x}{100}  \\  \\  \underline {\boxed{ \sf When,}}  \\  \\  \qquad \sf R=5  \\  \\  \qquad \sf T= 4years \\  \\  \sf   \xrightarrow{ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: }S.I. \footnotesize 1 =  \dfrac{20x}{100}  \\  \\   \sf {S.I.}\footnotesize{1} +{\sf {S.I.}\footnotesize{2} =  {960}} \\  \\  \sf   \xrightarrow{ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: }  \dfrac{28x}{100}  + \dfrac{20x}{100} = 960 \\  \\ \sf   \xrightarrow{ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: }  48x = 96000 \\  \\   \sf   \xrightarrow{ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: }  x =   \cancel\dfrac{96000}{48}  \\  \\  \sf   \xrightarrow{ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: }  x =   2000 \\  \\  \pink {\boxed{\sf Total  \: Sum \:  Lent =2x=4000} }\end{array}}}}

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