Question:A bag contains 25-p, 10 p-and-p coins in the ratio 1 : 2 : 3. If the total value is Rs. 30, the number of 5-p coins is : 

A 50 
B 100 
C 200 
D 150 

+ Answer
D 

+ Explanation
Let these coins be x 2x and 3x. Then,

`25/(100) x + 10/(100) xx 2x + 5/(100) xx 3x => 60 x`

` = 30 xx 100 => x = 50`

Number of 5 p- coins = 3x = 150

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Irin Moni

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