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29 Aug 2019, 23:39
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
71% (01:10) correct
29%
(01:04)
wrong
based on 56
sessions
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How many integers are there between integers i and k, inclusive?
(1) k - i = 22
(2) There are 21 integers between, but not including, i + 1 and k + 1.
30 Aug 2019, 00:18
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How many integers are there between integers i and k, inclusive?
(1) k - i = 22
Let k=32 and i=10
32-10+1=23
SO k-i+1=22+1=23............. SUFFICIENT
(2) There are 21 integers between, but not including, i + 1 and k + 1.
k+1-i-1=21 -> k-i=21
without inclusion of k and i, it is 21 so add 2 to get inclusive number.
SUFFICIENT
imo answer is option D
(1) k - i = 22
Let k=32 and i=10
32-10+1=23
SO k-i+1=22+1=23............. SUFFICIENT
(2) There are 21 integers between, but not including, i + 1 and k + 1.
k+1-i-1=21 -> k-i=21
without inclusion of k and i, it is 21 so add 2 to get inclusive number.
SUFFICIENT
imo answer is option D
30 Aug 2019, 01:01
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Statement 1 is sufficient because knowing that k-i =22 implies that there are 22+1 =23 integers between k and i both k and i inclusive.
Statement 2 is also sufficient. It is basically saying that k-(i+1)=21. This means that i+1 was not counted and I was also not counted. Therefore total integers between k and i with both k and i inclusive =21+2=23.
The answer is therefore D imo
Posted from my mobile device
Statement 2 is also sufficient. It is basically saying that k-(i+1)=21. This means that i+1 was not counted and I was also not counted. Therefore total integers between k and i with both k and i inclusive =21+2=23.
The answer is therefore D imo
Posted from my mobile device
