In wallet, there are notes of the denominations ₹10 and ₹50. The total number of notes is 12. The number of ₹10 and 50 notes are in the ratio of 1 : 2. Total money in the wallet is:
The ratio of the number of ₹10 and ₹50 notes = 1 : 2
The total number of notes = 12
The number of ₹10 notes = $$\frac{1}{1 + 2} \times 12 = 4
Money from the ₹10 notes = 4 $$\times$$ 10 = Rs.40
The number of ₹50 notes = 12 - 4 = 8
Money from the ₹50 notes = 8 $$\times$$ 50 = Rs.400
Total money in the wallet = 40 + 400 = Rs.440
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