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

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» <html><body><p><strong>Answer:</strong></p><p></p><p>original <a href="https://interviewquestions.tuteehub.com/tag/length-1071524" style="font-weight:bold;" target="_blank" title="Click to know more about LENGTH">LENGTH</a> = 40 <a href="https://interviewquestions.tuteehub.com/tag/cm-919986" style="font-weight:bold;" target="_blank" title="Click to know more about CM">CM</a> </p><p></p><p>New length = 200 cm </p><p></p><p><a href="https://interviewquestions.tuteehub.com/tag/increase-1040383" style="font-weight:bold;" target="_blank" title="Click to know more about INCREASE">INCREASE</a> in length = 200 - 40 </p><p> = 160 cm </p><p></p><p>percentage increase = </p><p><img align="absmiddle" alt="\frac{160}{40} \times 100" class="latex-formula" id="TexFormula1" src="https://tex.z-dn.net/?f=%20%5Cfrac%7B160%7D%7B40%7D%20%20%5Ctimes%20100" title="\frac{160}{40} \times 100"/></p><p>= <a href="https://interviewquestions.tuteehub.com/tag/400-315233" style="font-weight:bold;" target="_blank" title="Click to know more about 400">400</a> %</p><p></p></body></html>