Of 42 horses in a stable, 1/3 are black and 1/6 are white. The rest ar

Question

Of 42 horses in a stable, 1/3 are black and 1/6 are white. The rest are brown. What is the number of brown horses?

(A) 7
(B) 14
(C) 21
(D)28
(E) 35

callmeDP · Answer

Of 42 horses in a stable, 1/3 are black and 1/6 are white. The rest are brown. What is the number of brown horses?

>1/3 are black = 42/3 = 14 horses are black

>1/6 are white = 42/6 = 7 horses are white

>Brown horses = 42 - (14 + 7) = 42 - 21 = 21

IMO (C) 21

Nipungupta9081 · Answer

IMO C

42 are the total horses

1/3 + 1/9 = 9/18 = 1/2 -------- Horses which are not Brown

42 *1/2 = 21

Total - horses which are not brown = 42 - 21 = 21

therefore 21 horses are Brown.

kntombat · Answer

Black pieces =  42*\frac{1}{3}=14 .

White pieces=  42*\frac{1}{6}=7 .

Brown pieces=  42-14-7=21 .

Therefore, the OA is C    .

MathRevolution · Answer

Other colors:  \frac{1}{3} + \frac{1}{6} = \frac{1}{2}

Brown horses are  \frac{1}{2}  of 42: 21

Answer C

ScottTargetTestPrep · Answer

Solution:

We see that 42 x 1/3 = 14 are black horses and 42 x 1/6 = 7 are white horses. Since the rest are brown horses, there are 42 - 14 - 7 = 21 brown horses.

Answer: C

Of 42 horses in a stable, 1/3 are black and 1/6 are white. The rest ar

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

GMAT Problem Solving (PS) Questions

Of 42 horses in a stable, 1/3 are black and 1/6 are white. The rest ar

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