Last year \(\frac{3}{5}\) of the members of a certain club were males. This year the members of the club include all the members from last year plus some new members. Is the fraction of the members of the club who are males greater this year than last year?

(1) More than half of the new members are male.

(2) The number of members of the club this year is \(\frac{6}{5}\) the number of members last year.
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Hi..
total =T
Male = M
so \(\frac{3}{5}*T=M\)
new member = x..
Ratio of M will be GREATER if the male in new group >\(\frac{3}{5}*x\) otherwise No

lets see the statements
(1) More than half of the new members are male.
as can be seen slightly more than the 3/5 of new members should be male..
here if new males are between \(\frac{1}{2}..&..\frac{3}{5}\) including ans is NO
if > \(\frac{3}{5}\), ans is YES
Insuff

(2) The number of members of the club this year is \(\frac{6}{5}\) the number of members last year.
Nothing about the number of males in new addition
Insuff

combined..
nothing new

E
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this is hard
suppose there are 50 member, 30 of them are male.

1. not sufficient
2. not sufficient

combined
total number is 60
new member is 10
more than half is men, so, there are more than 6 is men
if 6 are men
we have 30+6=36
fraction of men is 36/60=3/5
if 7 are men
we have 30+7=37 men

fraction is 37/60>3/5

so not sufficient.

E

My 2 cents:

The answer is E for sure

Explanation : let there be 100 members in the club at starting
So as given 3/5 of them are male
So 60 would be male

Now new members get in and no of males in the new members is more than 1/2

Now 2 bf statement says that now the no of members after addition of new members is 6/5 of the earlier
Earlier there were 100 members
Now 6/5 *100 = 120
So the no of new members who have joined is

120-100=20

Given more than half are male so no of males >10

It can be 11,12,13 ......20

So
Now if the no of males are 11 then this time males are less in fraction
If 12 men are there then fraction of males would remain the same
If the no is 13 or greater than 13 the fraction will we greater this time

So we don't the actual no of males in the new members

So the answers is E



Sent from my iPhone using GMAT Club Forum

(2) says: The number of members of the club this year is 6/5 the number of members last year, NOT 3/5.
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_________________
It's a typo.
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3/5 = 60%. So, There are 60% males in the group.

The fraction or the percentage of the male this year will be greater only when there will be more than 60% male in the new group.

St 1: Says more than 50%. But we are not sure whether it is more than 60%. NS

St 2: Tell nothing about the new male member. NS

Combining we are not getting anything new. NS

Ans E

Working with the stem, we can come up with an equation: is 3+"new male"/ 5 + "new total" >3/5?
-> (3+m)/(5+t)>3/5? -> m/t>3/5? So, if m/t <=3/5 gives "no", m/t>3/5 gives "yes"

Then, we could do a bit of guessing should it come to this on the test day.
St. 2 looks easier to eliminate - we know nothing about the total and hence cannot judge about the ratio. SO B, D are gone.
We will be choosing between A, C or E.
St. 1 tells us that more than half are male, so it could still be 3/5, and thus will give us "yes" or "no". A is gone.
Between C or E, E should be the answer as there is not enough information to find the answer.

OR we can use smart numbers.
Lets say we have 5 people in total, with 3 men. We need to understand if 3 men + new men is greater that 5 + newcomers.

St. 1 tells that more than half are men. If 3 men out of 5 come, we'll keep the ratio. If 4 out of 5 come, it will exceed the ratio.
St. 2 tells that more men came than before. If 4 men and 0 women came, we will have a bigger ratio, if 4 men and 100 women come, we will have a smaller ratio.
E it is