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Re: If x is greater than 3 and less than 7, and y is less than 2 and gre [#permalink]
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Expert Reply
=> x is greater than −3 and less than 7: -3 < x < 7

=> y is greater than −2 and less than -10: -10 < y < -2

Range of possible values of xy: (-3 * -10 = 30), (-3 * -2 = 6), (7 * -10 = -70), (7 * -2 = -14)

Maximum value: 30

Minimum value: -70

Therefore, -70 < xy < 30

Answer E
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Re: If x is greater than 3 and less than 7, and y is less than 2 and gre [#permalink]
Expert Reply
We are given: -3 < x < 7 and -10 < y < -2

Note that we are not told that x and are integers.

Therefore, the minimum value of xy will be MORE than -10 * 7 = -70 ; and maximum value of xy will be LESS than -10*-3 = 30

So, the range of xy is: -70 < xy < 30 (this is option E)

Answer E.
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Re: If x is greater than 3 and less than 7, and y is less than 2 and gre [#permalink]
Carcass wrote:
=> x is greater than −3 and less than 7: -3 < x < 7

=> y is greater than −2 and less than -10: -10 < y < -2

Range of possible values of xy: (-3 * -10 = 30), (-3 * -2 = 6), (7 * -10 = -70), (7 * -2 = -14)

Maximum value: 30

Minimum value: -70

Therefore, -70 < xy < 30

Answer E


Nice...Its NowUnderstandable..thankyou
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Re: If x is greater than 3 and less than 7, and y is less than 2 and gre [#permalink]
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