An elastic band which is 72cm long, is stretched to 90cm.find the percentage increase in its length
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Increase in value = Increased value - Original value
= 90 cm - 72 cm = 18 cm
Percentage increase = Increase in value / Original value × 100
Percentage increase = Increase in value / Original value × 100= 18 / 72 x 100 = 25 %
Percentage increase = 25%
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