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Question-37632




Question Number 37632 by Raj Singh last updated on 16/Jun/18
Commented by Rasheed.Sindhi last updated on 16/Jun/18
This is a simple word problem.I think  it′s not a “puzzle”.
$$\mathrm{This}\:\mathrm{is}\:\mathrm{a}\:\mathrm{simple}\:\mathrm{word}\:\mathrm{problem}.\mathrm{I}\:\mathrm{think} \\ $$$$\mathrm{it}'\mathrm{s}\:\mathrm{not}\:\mathrm{a}\:“\mathrm{puzzle}''. \\ $$
Answered by Rasheed.Sindhi last updated on 16/Jun/18
10t+u : your age  9(10t+u) : 3-digit number  90(10t+u)+40006 : 5-digit number  90(10t+u)+40006−9(10t+u)=42355  81(10t+u)=42355−40006=2349  10t+u=((2349)/(81))=29  :Your age  Note: Single variable can be used instead  of 10t+u.
$$\mathrm{10t}+\mathrm{u}\::\:\mathrm{your}\:\mathrm{age} \\ $$$$\mathrm{9}\left(\mathrm{10t}+\mathrm{u}\right)\::\:\mathrm{3}-\mathrm{digit}\:\mathrm{number} \\ $$$$\mathrm{90}\left(\mathrm{10t}+\mathrm{u}\right)+\mathrm{40006}\::\:\mathrm{5}-\mathrm{digit}\:\mathrm{number} \\ $$$$\mathrm{90}\left(\mathrm{10t}+\mathrm{u}\right)+\mathrm{40006}−\mathrm{9}\left(\mathrm{10t}+\mathrm{u}\right)=\mathrm{42355} \\ $$$$\mathrm{81}\left(\mathrm{10t}+\mathrm{u}\right)=\mathrm{42355}−\mathrm{40006}=\mathrm{2349} \\ $$$$\mathrm{10t}+\mathrm{u}=\frac{\mathrm{2349}}{\mathrm{81}}=\mathrm{29}\:\::\mathrm{Your}\:\mathrm{age} \\ $$$$\mathcal{N}{ote}:\:\mathrm{Single}\:\mathrm{variable}\:\mathrm{can}\:\mathrm{be}\:\mathrm{used}\:\mathrm{instead} \\ $$$$\mathrm{of}\:\mathrm{10t}+\mathrm{u}. \\ $$

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