In an ATM if the currency notes of denominations of Rs.500, Rs.100 and Rs.50 respectively the notes are in the ratio of 3:3:4. The total cash in the ATM is Rs.400,000. How many notes of each denominations that ATM contains?
Q. In an ATM if the currency notes of denominations of Rs.500, Rs.100 and Rs.50 respectively the notes are in the ratio of 3:3:4. The total cash in the ATM is Rs.400,000. How many notes of each denominations that ATM contains?
Understand ratio and total cash: Understand the ratio of the currency notes and the total cash in the ATM.The ratio of the notes is given as 3:3:4 for Rs.500, Rs.100, and Rs.50 notes respectively. The total cash in the ATM is Rs.400,000.
Calculate total parts in ratio: Calculate the total number of parts in the ratio.The ratio has 3 parts for Rs.500 notes, 3 parts for Rs.100 notes, and 4 parts for Rs.50 notes. So, the total number of parts is 3+3+4=10 parts.
Determine value of each part: Determine the value of each part in the ratio.Since the total cash is Rs.400,000 and there are 10 parts, each part is worth Rs.10400,000=40,000.
Calculate number of Rs.500 notes: Calculate the number of Rs.500 notes. Since each part is worth Rs.40,000 and the Rs.500 notes are 3 parts of the ratio, the total value of Rs.500 notes is 3×Rs.40,000=Rs.120,000. To find the number of Rs.500 notes, divide this amount by the denomination: Rs.500Rs.120,000=240 notes.
Calculate number of Rs.100 notes: Calculate the number of Rs.100 notes. Similarly, the Rs.100 notes are also 3 parts of the ratio, so the total value of Rs.100 notes is also Rs.120,000. To find the number of Rs.100 notes, divide this amount by the denomination: Rs.120,000 / Rs.100 = 1,200 notes.
Calculate number of Rs.50 notes: Calculate the number of Rs.50 notes.The Rs.50 notes are 4 parts of the ratio, so the total value of Rs.50 notes is 4×Rs.40,000=Rs.160,000. To find the number of Rs.50 notes, divide this amount by the denomination: Rs.160,000/Rs.50=3,200 notes.
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