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 5 of 7.
Rakshnaa said:
7 years ago
(48-h)4 + 2h = 140.
-4h + 2h =140-192,
-2h=-52,
h = 26.
-4h + 2h =140-192,
-2h=-52,
h = 26.
Geet said:
8 years ago
Cows = L-2H/2.
=140-2*48/2 =44/2 =22,
Hens =48-22=26.
=140-2*48/2 =44/2 =22,
Hens =48-22=26.
Chhatra Thapa said:
4 years ago
140/2 = 70-48.
=22 is cow and the rest are hens=26.
=22 is cow and the rest are hens=26.
(1)
Pardeshi said:
10 years ago
Can anybody explain, how came the value of x and y?
Shivu said:
7 years ago
Number of legs/2- head= value of 4 legs animals.
Pradeep said:
8 years ago
140\2.
=70-48=22, cows=22,
Total head=48-22=26.
=70-48=22, cows=22,
Total head=48-22=26.
Srinu said:
1 decade ago
Can anyone tell me, how 2x and 4y are comming?
Santosh shindhe said:
6 years ago
140/2 = 70-48 = 22.
48-22 = 26.
Thanks all.
48-22 = 26.
Thanks all.
Laxmi said:
10 years ago
Please tell me clearly how came 2x and 4y?
Nambi sreekanth said:
7 years ago
Please, explain how the x value get as 26?
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