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Solution


Q.

The solution set of the inequality -2≤3x+22<7 is
1 {x:3≤x<4}  
2 {x:-2≤x<3}  
3 {x:-2≤x<4}  
4 {x:0≤x<6}  

Ans.

(3)

We have, -2≤3x+22<7

⇒ -4≤3x+2<14⇒-6≤3x<12⇒-2≤x<4