Aptitude - Ratio and Proportion - Discussion
Discussion Forum : Ratio and Proportion - General Questions (Q.No. 15)
15.
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 5 p coins are there?
Answer: Option
Explanation:
Let the number of 25 p, 10 p and 5 p coins be x, 2x, 3x respectively.
| Then, sum of their values = Rs. |  |
25x | + | 10 x 2x | + | 5 x 3x |  |
= Rs. | 60x |
| 100 | 100 | 100 | 100 |
 |
60x | = 30 |  x = |
30 x 100 | = 50. |
| 100 | 60 |
Hence, the number of 5 p coins = (3 x 50) = 150.
Discussion:
122 comments Page 13 of 13.
Bob said:
3 months ago
Thanks all for explaining the answer.
Yuva sree said:
2 weeks ago
Coins ratio = 1 : 2 : 3,
Value ratio = 25 : 20 : 15
= 5 : 4 : 3.
Total ratio = 12.
Value.of.5p coins = 3/12 * 3000(rs.30 = 3000p) = 750.
No.of 5p coins = 750/5.
= 150 coins.
Value ratio = 25 : 20 : 15
= 5 : 4 : 3.
Total ratio = 12.
Value.of.5p coins = 3/12 * 3000(rs.30 = 3000p) = 750.
No.of 5p coins = 750/5.
= 150 coins.
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