type.
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5. There are 50 paise coins and 1 rupee coins in a purse. The number of 50 paise coins is three
times of 1 rupee coins. If the total value of money is 35, find the number of coins of each
denomination.
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Answer:
let the 50 paisa coin be x and 1 Rupee's coin be y.
both are equal,
\begin{gathered}x = y \\ x - y = 0\end{gathered}x=yx−y=0
\begin{gathered} \frac{x}{2} + y = 300 \\ x + 2y = 600 \\ \end{gathered}2x+y=300x+2y=600
add both equations, after multiplying eq one by 2
\begin{gathered}2x - 2y = 0 \\ \end{gathered}2x−2y=0
\begin{gathered}3x = 600 \\ x = 200 \\ \end{gathered}3x=600x=200
so y will be 200.
total 50 paisa coin's are 200 and 1 Rupee's coin be 200 in number.
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