Question

A certain number of horses and 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 1

Define x:

Let x be the number of horses.

Number of men = x

Number of men on the ground = 1/2x

Find the number of horses:

Horses have 4 legs and men have 2 legs.

4x + 2(1/2 x) = 70

5x = 70

x = 14

Answer: There are 14 horses.

Answer 2

Answer:

Let no, of horses = no, of men = x

Then, no, of legs =4x + 2*(x/2) = 5x

So, 5x = 70

X = 14