Aptitude Hack#84(18-5-19)

Question:

 In a caravan, in addition to 50 hens, there are 45 goats and 8 camels with some keepers. If the total number of feet be 224 more than the number of heads, find the number of keepers?

  A )   17

  B )   16

  C )   14

  D )   15

Answer : D) 15

Explaination: 

Let the number of keepers be x then,

Total number of heads 

=(50 + 45 + 8 + x)= (103 + x).

Total number of feet 

= (45 + 8) *4 + (50 + x) * 2

=(312 +2x).

(312 + 2x)-(103 + x) =224

 x =15.

Hence, the number of keepers =15.