Question-33

The number of coins of ₹1, ₹5, and ₹10 denominations that a person has are in the ratio 5:3:13. Of the total amount, the percentage of money in ₹5 coins is

• \(21\%\)
• \(14 \cfrac{2}{7}\%\)
• \(10\%\)
• \(30\%\)

NoteAnswer

• \(21\%\)
• \(14 \cfrac{2}{7}\%\)
• \(10\%\)
• \(30\%\)

NoteSoluton

Let the number of coins of the three denominations be \(\displaystyle 5k\), \(\displaystyle 3k\) and \(\displaystyle 13k\). The total money in the person’s possession is \(\displaystyle 5k\times 1+3k\times 5+13k\times 10=150k\). The percentage of money in ₹5 coins is \(\displaystyle \frac{3k\times 5}{150k} \times 100=10\%\).