Verbal Reasoning - Arithmetic Reasoning - Discussion
Discussion Forum : Arithmetic Reasoning - Section 1 (Q.No. 39)
39.
A certain number of horses and an equal number of men are going somewhere. Half of the owners are on their horses' back while the remaining ones are walking along leading their horses. If the number of legs walking on the ground is 70, how many horses are there ?
Answer: Option
Explanation:
Let number of horses = number of men = x.
Then, number of legs = 4x + 2 x (x/2) = 5x.
So, 5X = 70 or x = 14.
Discussion:
11 comments Page 1 of 2.
Sherab said:
3 years ago
Here no Of horses and men is equal.
So, Let's say x
While half of the owner is on horses back and a half walking
So total legs on the ground is 70.
We know a horse has 4 legs and a man has 2 legs
So 4x + 2(x/2)= 70 (here x/2 is bcoz half of the men is on horse's back while only half is walking with horses).
5x = 70 .
x = 14 (horses and men).
So, Let's say x
While half of the owner is on horses back and a half walking
So total legs on the ground is 70.
We know a horse has 4 legs and a man has 2 legs
So 4x + 2(x/2)= 70 (here x/2 is bcoz half of the men is on horse's back while only half is walking with horses).
5x = 70 .
x = 14 (horses and men).
(2)
Anup said:
1 decade ago
Why we multiply by x/2?
Bhuvaneskumar said:
1 decade ago
Because half a man is in horses back, thats why multiply by x/2.
Kinny said:
1 decade ago
Why we multiply by 4x?
Arohi said:
1 decade ago
How this 5x came?
Muniyasamy V said:
1 decade ago
See totally 70 legs.
1. Horses totally have a 4 legs.
2. Humans totally have a 2 legs.
So 4x + (2*x) /2.
That the simple reason.
1. Horses totally have a 4 legs.
2. Humans totally have a 2 legs.
So 4x + (2*x) /2.
That the simple reason.
Pankaj Sharma said:
8 years ago
How this 5x came?
Ganesh Z said:
7 years ago
The total num of legs comes as:
Horses legs is 4 * number of horses = 4*(x).
Humans leg is 2 * number of humans i.e. half of the humans, x/2 = 2*(x/2).
So total number of legs are : (4*x) + (2*(x/2)) = 5x.
So, we get 5x = 70.
Horses legs is 4 * number of horses = 4*(x).
Humans leg is 2 * number of humans i.e. half of the humans, x/2 = 2*(x/2).
So total number of legs are : (4*x) + (2*(x/2)) = 5x.
So, we get 5x = 70.
Albin said:
7 years ago
Here it should be, 4X + (2X)/2 = 4X + 1X =5X is correct.
Jas said:
6 years ago
4x+2x/2=70.
8x+2x/2=70,
10x/2=70,
70*2/10= 14.
8x+2x/2=70,
10x/2=70,
70*2/10= 14.
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