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If (2x – y < 7) and (x + 4y < 11), then which one of the following is corect ?

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If (2x – y < 7) and (x + 4y < 11), then which one of the following is corect ?

(a) x + y < 5 

(b) x + y < 6 

(c) x + y ≤ 5 

(d) x + y ≥ 6

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1 Answer

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Best answer

(b) x + y < 6

2x – y < 7                …(i) 

x + 4y < 11                …(ii) 

Adding (i) and (ii), we get 

3x + 3y < 18 ⇒ x + y < 6

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