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There are some 50 paisa and 25 paisa coins in a bag, if the total number of coins is 30 and their total value is 11 rupees , find the number of coins of each kind.

Let the number 50 paisa coins= x
the number of 25 paise coins = y
According to the question ,
x ➕ y = 30.....(1)
50x➕ 25y = 1100( 1 rupee = 100 paise).....(2)
Substitute y = 30 in (2)
We get
X = 14
Substitute x =14 in (1)
We get
Y = 16
Therefore. There are 14 50 paise coins and 16 25 paise coins