Mathematics, 22.09.2019 02:30, joejoefofana
Jim's uncle is 4 times as old as his nephew jim. in 10 years, jim's uncle age will be 20 years more than twice jim's age. how old is jim right now?
Answers: 1
![y+10=2(x+10)+20\\\\\Rightarrow y=2x+20+20-10\\\\\Rightarrow y=2x+30\\\\\Rightarrow 4x=2x+30~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[\textup{Using equation (i)}]\\\\\Rightarrow 2x=30\\\\\Rightarrow x=15.](/tpl/images/0250/9698/4e11e.png)
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Jim's uncle is 4 times as old as his nephew jim. in 10 years, jim's uncle age will be 20 years more...
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