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A stick has a length of 12.132cm and another stick has a length of 12.4cm.If the two sticks are placed end to end, what is their total length? If the two sticks are placed side by side , what is the difference in their lengths?

Answer» <html><body><p></p>Solution :Let lengths of the <a href="https://interviewquestions.tuteehub.com/tag/sticks-1227588" style="font-weight:bold;" target="_blank" title="Click to know more about STICKS">STICKS</a> are named as `l_(1)=12.132cm, l_(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)=12.4cm`<br/>Here `l_(2)`has one decimal place and `l_(1)`has to be <a href="https://interviewquestions.tuteehub.com/tag/rounded-2999253" style="font-weight:bold;" target="_blank" title="Click to know more about ROUNDED">ROUNDED</a> off t o have only <a href="https://interviewquestions.tuteehub.com/tag/two-714195" style="font-weight:bold;" target="_blank" title="Click to know more about TWO">TWO</a> decimal places <br/>`l_(1)+l_(2)=12.13+12.4=24.53`.<br/> This is to be rounded off to have one decimal place only. <br/>`:.` The total length is` 24.5cm`<br/>`l_(1)=12.132, l_(2)=12.4`. ` l_(1)-l_(2)=12.4-12.132`<br/>Here `12.4`has only decimal place and hence `12.132`should have only two decimal places. <br/> `:.l_(1)-l_(2)=12.4-12.13=0.27`<br/>this should be rounded off to have only one decimal place .<br/>`:.l_(1)-l_(2)=0.3`<br/>Hence difference of their lengths is `0.3`<a href="https://interviewquestions.tuteehub.com/tag/cm-919986" style="font-weight:bold;" target="_blank" title="Click to know more about CM">CM</a></body></html>


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