please help me . in a science experiment the length of a spring increa

1.	please help me . in a science experiment the length of a spring increased by 40cm to 2m .find the percentage increase in the length of the spring
Answer» Answer: original LENGTH = 40 CM New length = 200 cm INCREASE in length = 200 - 40 = 160 cm percentage increase = $\frac{160}{40} \times 100$ = 400 %

please help me . in a science experiment the length of a spring increased by 40cm to 2m .find the percentage increase in the length of the spring

Answer»

Answer:

original LENGTH = 40 CM

New length = 200 cm

INCREASE in length = 200 - 40

= 160 cm

percentage increase =

$\frac{160}{40} \times 100$

= 400 %