madhu's piggy bank contains rs.5 coins and 10 rs coins. the no. of 5 rs coins is thrice the no. of 10 rs coins. the total valur of coins in her piggy bank is 250. find the no. of coins in each denomination
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Answer:
10 rs coins 10no.and 5 rs coins 30no.
Step-by-step explanation:
let the no. of 10 rs coins be x
the no. of 5 rs coins=3x
the value of x coins=10×x=10x
the value of 3x coins=3x×5=15x
10x+15x=250
x=250/25=10
3x=3×10=30
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