If the numerator of a fraction is increased by 50% and denominator decreased by 20%, the new value is 3/10. What was the original fraction?
Explanation:
Let the original fraction = x/y
∴ x+50% of xy - 20% of y=310
⇒ 1.5x0.8y=310
⇒ x/y = 4/25
Hence, option (e).
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