In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 25 p coins are there?  Choose the correct choice from the following answers.
A) 20	B) 30	C) 25	D) 50	E) 40
Let the number of 25 p, 10 p and 5 p coins be x, 2x, 3x respectively.   Then, sum of their values = (25 x/100) + (20 x/100) + (15 x/100)   = 60 x /100   30 = 60 x / 100   x = 50 = 25 p coin   Ans - 50
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In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of 1 : 2 : 3. If there is Rs. 30 in all, how many 25 p coins are there?