if x and y are integers and -9<x<9 and 0<y< what is the greatest possible value of (y-x)?

A    23

B    21

C    19

D    none of this

Solution

Correct Answer: Option B

 

for -9<x<9 highest value of x = -8 for 0<y<14 highest value of y =13 so, y-x=13-(-8)=21

 

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