GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Which of the following could not be the ratio of “heads” to “tails?” I
[#permalink]
16 Jun 2021, 02:14
16 Jun 2021, 02:14
Expert Reply
00:00
Question Stats:
32% (00:47) correct
67% (00:49) wrong based on 52 sessions
Hide Show timer Statistics
Maya flipped 24 coins, each of which landed with either a head face up or a tail face up, hereafter referred to as an outcome of “heads” or “tails.”
Which of the following could not be the ratio of “heads” to “tails?”
Indicate all that apply.
1:1
2:1
3:1
4:1
5:1
Which of the following could not be the ratio of “heads” to “tails?”
Indicate all that apply.
1:1
2:1
3:1
4:1
5:1
Which of the following could not be the ratio of “heads” to “tails?” I
[#permalink]
16 Jun 2021, 08:49
16 Jun 2021, 08:49
1
The number of heads and tails out of 24 tosses can never be a fraction, they have to be WHOLE numbers.
We just have to figure out which one of the ratios produces a FRACTION for the number of Heads and Tails.
If the total number of tosses (24) divided by the sum of the two numbers within a ratio equals a whole number, we know for sure that is a POSSIBLE ratio.
A) 1+1 =2; 24/2= 12; Possible
B) 2+1 =3; 24/3= 8; Possible
C) 3+1 =4; 24/4= 6; Possible
D) 4+1 =5; 24/5= 4.8; FRACTION, so NOT Possible
E) 5+1 =6; 24/6= 6; Possible
Answer D.
We just have to figure out which one of the ratios produces a FRACTION for the number of Heads and Tails.
If the total number of tosses (24) divided by the sum of the two numbers within a ratio equals a whole number, we know for sure that is a POSSIBLE ratio.
A) 1+1 =2; 24/2= 12; Possible
B) 2+1 =3; 24/3= 8; Possible
C) 3+1 =4; 24/4= 6; Possible
D) 4+1 =5; 24/5= 4.8; FRACTION, so NOT Possible
E) 5+1 =6; 24/6= 6; Possible
Answer D.
gmatclubot
Which of the following could not be the ratio of “heads” to “tails?” I [#permalink]
16 Jun 2021, 08:49
Moderators:
