If k^2+9k-10<0 and k<0 then k belongs to

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08 Jun 2012 quadratic equation

If k^2+9k-10<0
and k<0
then k belongs to

OPtion

1) (-10, -4)
2) (-14, -5)
3) (-12, -3)
4) (-10, 0)
5) (- 9, 0)
6) (-13, -4)
7) (-12, -2)
8) (- 5, 0)
9) (- 8, 0)
10) none of these

Solution

k<0 means only negative values are possible
and k^2+9k-10 < 0
implies that (k+10)(k-1) < 0
implies that -10 but k is negative so answer will be -10

Correct Option: 4 Best Solution (0)