In a bag, there are coins of 25 paise, 10 paise and 5 paise in the ratio of 1: 2: 3. If there are Rs.30 in all, how many 5 paise coins are there?
A150
B50
C100
D200
Answer:
A. 150
Read Explanation:
Ratio of coins of 25 paise, 10 paise and 5 paise = 1:2:3
Ratio of values of 25 paise, 10 paise and 5 paise = 1/4: 2/10: 3/20 or 5: 4:3
Ratio of values of 25 paise, 10 paise and 5 paise = 5x : 4x : 3x
According to the question
5x + 4x + 3x = 30
x = 30/12
Number of coins of 5 paise in the bag are = 3 x (30/12) x 20 = 150