What percent of a group of 10 turtles do not have spots?

Question

(1) 5 turtles in the group do not have spots.

(2) 50 percent of the turtles in the group have spots.

EncounterGMAT · Answer

Group = 10#
no spots/10*100=?

(1) 5 turtles in the group do not have spots.
Turtles with no spots=5
so 5/10*100=50%.............SUFFICIENT

(2) 50 percent of the turtles in the group have spots.
of 10, 50% have spots. So remaining 50% don't have spots..............SUFFICIENT

Answer is option D

Mohammadmo · Answer

Both statement could be sufficient alone.
Statment(1):5 don't havd spot.
10-5=5, 5/10=50%
Statement(2):50% of have spots.
100%-50%=50%
Option D

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