Data Interpretation Ques 255
Directions : Refer to the following graph and answer the given questions.

If the average number of bags sold by store M in 2011, 2012 and 2013 was 350 , what was the number of bags sold by the same store in 2013?
(1) 510
(2) 540
(3) 550
(4) 530
(5) 520
Show Answer
Correct Answer: (4)
Solution: (4) Number of bags sold by store $M$ in $2013=x$ (let) According to the question,
$\frac{340+180+x}{3}=350$
$\Rightarrow 520+x=3 \times 350=1050$
$\Rightarrow x=1050-520=530$