Ratio of earning of a and b is 4:7. if the earning of a increased by 50%and those of b decrease by 25% the new ratio of there earnings becomes 8:7. what is A'S earning
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Let the earnings of A and B be Rs.4x and 7x respectively.
After 50% increase. A's earnings = 150% of 4x
After 25% decrease, B's earning = 75% of 7x
Ratio = 150% of 4x : 75% of 7x = 8 : 7
But their total earnings are unknown.
Hence A's earnings can't be known.
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