Question 4 - Ratio

• Every month when John received his salary, he would give his father some money and spent the remaining amount of salary. The ratio of the amount of money John gave to his father to the amount spent on himself was 7 : 4. John spent his money on food and transport in the ratio 5 : 3 respectively. If he spent $580 more on food than on transport, what was the ratio of the amount of money spent on food to his salary?

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