RRB Technician 2013 Ques 115
Question: Kishan has some hens and some cows. If the total number of animal heads are 59 and the total number of feet are 190. How many cows does Kishan have?
Options:
A) 36
B) 32
C) 23
D) Cannot be determined
Show Answer
Answer:
Correct Answer: A
Solution:
- Let the number of hens be x. Therefore, the number of cows will be $ (59-x) $ . According to the question, $ x\times 2+4(59-x)=190 $
$ \Rightarrow $ $ 2x+236-4x=190 $
$ \Rightarrow $ $ 2x=46 $
$ \Rightarrow $ $ x=23 $ So, the number of cows $ =59-23=36 $
BETA
