Purnank
Bunuel
How many girls are there in the class of 20?
(1) Only 10 students applied for Home Science.
(2) Only girls applied for Home Science.
I think C,
1st - Only 10 students applied for Home Science. Not sufficient.
2nd - Only girls applied for Home Science. also doesn't says anything about count of girls.
Now combining both we can get the count for girls in the class. Hence going with C.
@
Purnank be careful. While 10 girls do Home Science, none of the statements indicate that these are the only girls.
(1) Only 10 students applied for Home Science.This statement does not provide sufficient info to find the number of girls in the class.
INSUFFICIENT(2) Only girls applied for Home Science.The info provided here is not sufficient in solving for the number of girls in the class.
INSUFFICIENT(1+2)Putting the info we know that 10 girls applied for Home Science. However, this does not mean that there are 10 girls in the class. Perhaps these are all the girls in the class of 20, or perhaps there are only girls in the class and the other 10 opted to do something other than Home Science. All one can determine is the number of girls is between 10 and 20, inclusive. More info is required.
INSUFFICIENTANSWER E