Ashutosh has 262 coins consisting of one rupee, 50 paisa and 25 paisa coins. The total value of the coins is Rs. 130. If the 50 paisa and 25 paisa coins are interchanged, the value comes down by Rs. 6. Find the number of 1-rupee coins he has?
Explanation:
Let X be the number of 1-rupee coin, Y be the 50 paise coin and Z be the 25 paise coin.
X + Y + Z = 262,
X+Y2+Z4=130,
X+Y4+Z2=124.
So, X = 23.
Hence, option (a).
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