What is the sum of the rational numbers denoted by points D and Y?
A) \[2\frac{1}{5}\]
B) \[3\frac{1}{4}\]
C) \[8\frac{1}{5}\]
D) \[2\frac{1}{4}\]
Correct Answer: D
Solution :
(d) Point \[D\Rightarrow -1,\]Point y = (4 division = 3 units) \[\therefore \]3 divisions \[=\frac{9}{4}\] units \[\therefore \]Point \[y=1+\frac{9}{4}=\frac{13}{4}\] \[\therefore \] D + Y \[=-1+\frac{13}{4}=\frac{9}{4}\]
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