There are three different ways to score in basketball. A successful

Question

There are three different ways to score in basketball. A successful shot from beyond an arc drawn on the court is worth 3 points. Shots made from inside the arc are worth 2 points. If a player is fouled by another player, the fouled player may shoot "free throws," which are worth 1 point each. A certain team scored 45 points in a game. The team made twice as many 2-point shots as 3-point shots. How many free throws did the team make?

(1) The team attempted 12 free throws.

(2) Five-sixths of the team's free-throw attempts were successful.

This is a  Data Sufficiency Butler Question

Check the links to other Butler Projects: 
 
   Data Sufficiency Butler 
   Problem Solving Butler  
   Sentence Correction Butler  
   Reading Comprehension Butler  
   Integrated Reasoning Butler

Nidzo · Accepted Answer

Let the number of one-pointers =  x , the number of two-pointers =  y  and the number of three-pointers =  z

x+2y+3z = 45

We are told " The team made twice as many 2-point shots as 3-point shots ". That means  y = 2z . Plugging that back in:

x+2(2z)+3z = 45

x+7z = 45

(1) The team attempted 12 free throws.

The team could have missed all of them, made all of them or made any number inbetween.

INSUFFICIENT

(2) Five-sixths of the team's free-throw attempts were successful.

This tells us that the number of freethrows that went in is a multiple of 5. This means that the value's unit digit will be either 0 or 5.

Looking at  x+7z = 45 , as  x  will end in either 0 or 5,  7z  will have to end in the opposite value to ensure we have a units digit of 5.

The first number where  7z  will end in 0, is when  z  is 10 ( 7(10) = 70 . This obviously cannot hold as this is well above the 45 points scored, and the game does not have negative points. Therefore,  7z  needs to end in 5. The first time that occurs is when  z = 5  ( 7(5) = 35 ) and the next will be  z = 15  ( 7(15) = 105 ), which once again exceeds 45. Therefore  z = 5

x+35 = 45

x = 10

SUFFICIENT

ANSWER B

ribbons · Answer

2(2x)+3x+f=45

7x+f=45

S1

f<=12 (not every free throw will land a point)

x can be 5 or 6

Insufficient

S2

if 5/6 succesful but 5/6 of what ?

Insufficient

S1+2

5/6 of 12 succesful = 10 points

we also know that x is 5 so 5 3 pointers and 10 2 pointers

Hence C

tgsankar10 · Answer

I think all the details in the given statement is not necessary. Statements alone are necessary.

Statement 1: Total 12 free throw attempts. Some could have been unsuccessful.  Not Sufficient

Statement 2:  \frac{5}{6}  attempts are successful.  Not sufficient

Combined:  \frac{5}{6}  of 12 attempts are successful. So the team made 10 successful points out of free throws.   Sufficient

rishabh0312 · Answer

Since the team scored 45 points, let's break it down.

If the team has played "x" 3-point shots, then it must have played "2x" 2-point shots. Combining this we get to know that it has played 3*x + 2*(2x) = 7x in shots. Therefore, points acquired through shots must be divisible by 7.

Now,

Total points = 45
points through shots = 7x (7, 14, 21, 28, 35 or 42)
let's assume points through free throws will be y.

Then we can clearly see that y can be one of the following:

45 - 7 = 38
45 - 14 = 31
45 - 21 = 24
45 - 28 = 17
45 - 35 = 10
45 - 42 = 3

Now, let's have a clear look at statement(2): "Five-sixths of the team's free-throw attempts were successful"

From the above possible values of y (free throws), we can deduce that only 10 can be 5/6 of an integer (since number of free throws must be an integer).

Therefore, we can deduce that statement(2) must be sufficient to answer.

ANSWER: B

I hope I am able to help

Matthiasmz · Answer

In my opinion this question is poorly written. The question can be How many points did the team earn from their free throws or How many free throws did the team shoot?

Ghoskrp3 · Answer

We all know we have this equation of  7x + y = 45  for the score tally right! (where 7x is coming from is:  2x (2 points) + 1x (3 points) = 7x points )

Then that gives us the following table of possibilities:

7x  (All 2 & 3 pointers points) 
  Free Throw Points  
  Total  
 
  42 
 3 
 45 
 
  35 
 10 
 45 
 
  28 
 17 
 45 
 
  21 
 24 
 45 
 
  14 
 31 
 45 
 
  7 
 38 
 45

Statement 1:  It says, they got 12 free hits, it is still insufficient because the top two rows of the table become the possibilities then (so not enough to assert)

Statement 2 : It says 5/6 of the Free Throws were successful, then that means Free throw point has to be a multiple of 5 and then from there we can increase the missed points to fit into the 5/6 ratio ... since only row number 2 satisfies this, then It alone is just  sufficient to answer !

akhil0699 · Answer

There is no where  written  that 2 and 3 pointers can't be 0.
Your assumption to this is wrong.
Hence answer should be  C

Ghoskrp3 · Answer

It says  "   The team made twice as many 2-point shots as 3-point shots",  which indicates that the 2-point and 3-point shots has to be a non-zero number!

NoeticImbecile · Answer

Hello, in S2: 5/6th of free throw is successful, so shouldn't number of free throws be multiple of 6?. please explain

There are three different ways to score in basketball. A successful

Prep Toolkit

Top 5 GMAT Debrief Videos

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards

7x (All 2 & 3 pointers points)	Free Throw Points	Total
42	3	45
35	10	45
28	17	45
21	24	45
14	31	45
7	38	45

GMAT Data Sufficiency (DS) Questions

There are three different ways to score in basketball. A successful

Prep Toolkit

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards