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Question

Given POR=3x and QOR=2x+100. If POQ is a striaght line, then the value of x is: 



A

 300 

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B

340
 

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C

360 

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D

 None of these

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Solution

The correct option is A

340
 


POQ is a straight line 
POR+QOR=1800 (Linear pair)
3x+2x+100=1800
5x=1800100=1700
x=17005=340


Mathematics
RD Sharma
Standard IX

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