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Official Explanation

(D) The smallest change in 2010 was approximately –0.1 in June 2010. The greatest change in 2011 was 0.7 in March 2011. The difference is 0.7 – (–0.1) = 0.8.

(B) In the second half of 2011, increases become smaller and by October, the CPI declines. The longest period of slowing change in the CPI was the second half of 2011, a period of six months beginning in August 2011.
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Sajjad1994
Official Explanation

(D) The smallest change in 2010 was approximately –0.1 in June 2010. The greatest change in 2011 was 0.7 in March 2011. The difference is 0.7 – (–0.1) = 0.8.

(B) In the second half of 2011, increases become smaller and by October, the CPI declines. The longest period of slowing change in the CPI was the second half of 2011, a period of six months beginning in August 2011.
­chetan2u Sajjad1994
I didn't get the explanation. Please help me out here:

Greatest change in CPI in 2011 = greatest slope, which seems to be in May-11 to June-11
And least change in 2010 = least slope = 0 from Nov-10 to dec-10

When it says ''greatest/least change'', we should be taking absolute values of the changes, right?
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ashutosh_73


­chetan2u Sajjad1994
I didn't get the explanation. Please help me out here:

Greatest change in CPI in 2011 = greatest slope, which seems to be in May-11 to June-11
And least change in 2010 = least slope = 0 from Nov-10 to dec-10

When it says ''greatest/least change'', we should be taking absolute values of the changes, right?
­I am not very comfortable with the wordings of the question, so best left untouched.

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