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Question-69431




Question Number 69431 by azizullah last updated on 23/Sep/19
Answered by Kunal12588 last updated on 23/Sep/19
120=x+y...(1)  let x>y  3y=2x...(2)  from (1)  240=2x+2y  ⇒240=3y+2y=5y    from(2)  ⇒y=((240)/5)=48  x=120−48=72  Don′t you really understand the question?
$$\mathrm{120}={x}+{y}…\left(\mathrm{1}\right) \\ $$$${let}\:{x}>{y} \\ $$$$\mathrm{3}{y}=\mathrm{2}{x}…\left(\mathrm{2}\right) \\ $$$${from}\:\left(\mathrm{1}\right) \\ $$$$\mathrm{240}=\mathrm{2}{x}+\mathrm{2}{y} \\ $$$$\Rightarrow\mathrm{240}=\mathrm{3}{y}+\mathrm{2}{y}=\mathrm{5}{y}\:\:\:\:{from}\left(\mathrm{2}\right) \\ $$$$\Rightarrow{y}=\frac{\mathrm{240}}{\mathrm{5}}=\mathrm{48} \\ $$$${x}=\mathrm{120}−\mathrm{48}=\mathrm{72} \\ $$$${Don}'{t}\:{you}\:{really}\:{understand}\:{the}\:{question}? \\ $$
Commented by azizullah last updated on 24/Sep/19
        thanks sir
$$\:\:\:\:\:\:\:\:\boldsymbol{\mathrm{thanks}}\:\boldsymbol{\mathrm{sir}} \\ $$
Answered by $@ty@m123 last updated on 23/Sep/19
3x=2(120−x)  5x=240  x=48
$$\mathrm{3}{x}=\mathrm{2}\left(\mathrm{120}−{x}\right) \\ $$$$\mathrm{5}{x}=\mathrm{240} \\ $$$${x}=\mathrm{48} \\ $$
Commented by azizullah last updated on 24/Sep/19
        Sir thanks alot.
$$\:\:\:\:\:\:\:\:\boldsymbol{\mathrm{Sir}}\:\boldsymbol{\mathrm{thanks}}\:\boldsymbol{\mathrm{alot}}. \\ $$

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