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Is the range of a set of ten different even integers less than 20?

(1) The product of the ten integers is negative. (2) All ten integers have two digits.

C.
1: if the set consists: -2, 0, 2, 4, 6, 8, 10, 12, 14, and 16. so range = 18
if the set consists: -6, 0, 2, 4, 6, 8, 10, 12, 14, and 16. so range = 22

2: if the set consists: 10, 12, 14, 16, 18, 20, 22, 24, 26, and 28. so range = 18
if the set consists: -10, 12, 14, 16, 18, 20, 22, 24, 26, and 28. so range = 38

1 and 2: if the set consists: -10, 12, 14, 16, 18, 20, 22, 24, and 26 so range = 36

The diff will atleast be 20 using any combination.

The higest negative is -10 and the lowest positive is 10

does it say a certain consecutive integers in the set.
if we think that integers are consecutive even then yep it is C.
but it doesn say anything about that consecutiveness. and it can be -20, -16,-4, 0 .... 40 or so.. cannot we have the set like that

Together if the product has to be negative then there need to be at least one positive, and if they have to have 2 digits, the range will be larger than 20

Is the range of a set of ten different even integers less than 20?

(1) The product of the ten integers is negative. (2) All ten integers have two digits.

Answer A.

Stat 1: Since product is -ve, 0 cannot be part of the even integers. Also, there needs to be an odd number of -ve integers.

Eg: -2, 2, 4, 6, 8, 10, 12, 14, 16, 18; range = 20
If we increase on the positive side or decrease on the -ve side, the range will only increase (that is become greater than 20). Whether the even integers and consecutive or not has no bearing on this fact.

Sufficient.

Stat 2:
if the set consists: 10, 12, 14, 16, 18, 20, 22, 24, 26, and 28. so range = 18
if the set consists: -10, 12, 14, 16, 18, 20, 22, 24, 26, and 28. so range = 38

Is the range of a set of ten different even integers less than 20?

(1) The product of the ten integers is negative. (2) All ten integers have two digits.

Answer A.

Stat 1: Since product is -ve, 0 cannot be part of the even integers. Also, there needs to be an odd number of -ve integers.

Eg: -2, 2, 4, 6, 8, 10, 12, 14, 16, 18; range = 20 If we increase on the positive side or decrease on the -ve side, the range will only increase (that is become greater than 20). Whether the even integers and consecutive or not has no bearing on this fact.

Sufficient.

Stat 2: if the set consists: 10, 12, 14, 16, 18, 20, 22, 24, 26, and 28. so range = 18 if the set consists: -10, 12, 14, 16, 18, 20, 22, 24, 26, and 28. so range = 38

Inusff.

It is a good one

agree it is A.

never forget about zero....it reminds itself.

Given info in the stem and 1st statement range can be either equal to 20 or more than 20.

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