Aptitude - Simplification - Discussion
Discussion Forum : Simplification - General Questions (Q.No. 13)
13.
A man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be:
Answer: Option
Explanation:
Let the number of hens be x and the number of cows be y.
Then, x + y = 48 .... (i)
and 2x + 4y = 140 
x + 2y = 70 .... (ii)
Solving (i) and (ii) we get: x = 26, y = 22.
The required answer = 26.
Discussion:
67 comments Page 3 of 7.
Ranjan said:
6 years ago
Thanks all for explaining.
Afadmin said:
6 years ago
It can be solved by;
Total legs/2 - total head = total no of 4 legs animal.
= 140/2 - 48.
= 70 - 48 = 22 four legs animal,
Total 48. So 26 two legs animal means hens here.
Total legs/2 - total head = total no of 4 legs animal.
= 140/2 - 48.
= 70 - 48 = 22 four legs animal,
Total 48. So 26 two legs animal means hens here.
Devan mavani said:
7 years ago
Short cut
Total legs/2 - total head = total no of 4 legs animal.
= 140/2 - 48.
= 70 -48 = 22 four legs animal,
Total 48. So 26 two legs animal means hens here.
Total legs/2 - total head = total no of 4 legs animal.
= 140/2 - 48.
= 70 -48 = 22 four legs animal,
Total 48. So 26 two legs animal means hens here.
DEEKSHANT UPADHYAY said:
7 years ago
48*4=192, 192-140=52÷2=26.
Cow=26, Hens=22.
Cow=26, Hens=22.
Jai prakash said:
7 years ago
Well said, thanks @Shubham Yadav.
Riya said:
7 years ago
How come 140? Please explain.
Pushpa said:
7 years ago
Thanks @Sheeraz.
Shivu said:
7 years ago
Number of legs/2- head= value of 4 legs animals.
Shubham yadav said:
7 years ago
2 legs of formula= 2H - L/2.
Solve = 2 * 48 - 140/2
= 96 - 70
= 26.
Solve = 2 * 48 - 140/2
= 96 - 70
= 26.
Archita yadav said:
7 years ago
140/2 = 70,
70-48 = 22 (number of cows).
48-22 = 26 (number of hens).
70-48 = 22 (number of cows).
48-22 = 26 (number of hens).
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