Question

plz solve ASAP.
NEED DETAILED BUT EASIEST ANSWER

Answer 1

Let the number of bullocks be x.

Given that The number of cows is double than that of the bullocks but the number of cows and hens is the same.

= > That means hens = cows = 2x.   -------- (1) 


Given that there is one keeper per 10 birds and cattle and the keeper does not exceed 50.

= > That means the keepers can be 4 maximum.   ------- (2)


From (1) & (2), we get

= > Total number of heads = x + 2x + 2x + 4

                                             = 5x + 4.



Now,

= > Total number of legs = 4x + 4 * 2x + 2 * 2x + 2 * 4

                                         = 4x + 8x + 4x + 8

                                         = 16x + 8.


Given that there are 69 heads less than legs.

= > (16x + 8) - (5x + 4) = 69

= > 16x + 8 - 5x - 4 = 69

= > 11x + 4 = 69

= > 11x = 65

= > x = 5.5

= > x = 6


Therefore the number of cows = 2 * 6

                                                    = 12.



Hope this helps!