Question

the monthly income of a and b are in the ratio 3:4 and their monthly expenditure are in the ratio 7:11. If each saves rupees 2500 per month. Find the monthly income of each

Answer 1

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Answer 2

$3x + 4x + 7x + 11x = 2500 \\ 25x = 2500 \\ x = 2500 \div 25 \\ x = 100 \\ 3 \times 100 + 4 \times 100 \\ 3200 \: is \: the \: income \: of \: a \\ 7 \times 100 + 11 \times 100 \\ = 4300 \: is \: the \: income \: of \: b$