IndiaBIX

Aptitude - Simplification - Discussion

Discussion Forum : Simplification - General Questions (Q.No. 13)
Simplification
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:
22
23
24
26
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 4 of 7.
Naveen said:   8 years ago
140/2=70-48=22, 48-22=26.
ASHIK.K.S said:   8 years ago
Applying L/2-h.
First step : L/2=140/2=70,
Second step :L/2-h=70-48=22(no.of cows),
Last step:no.of cows=22,
Total heads=48,
There fore,
The no.of hens=48-22=26.
Prasad Mandati said:   8 years ago
Number of Cows = (Feet/2) -- Heads.

Number of Hens = Total heads --Number of Cows.
Lakshmi said:   7 years ago
There are some cows, bulls and hens in a group. One caretaker looks after 15 animals. The number of bulls is twice the number of cows if the number of head is less than the total number of feet is 186, how many caretakers are there?

Can anyone solve this?
Nambi sreekanth said:   7 years ago
Please, explain how the x value get as 26?
Ramandeep singh said:   7 years ago
Hi, Use the formula to get the answer.

No of 4 feet animals = Foots -(heads*2)/2.
Rakshnaa said:   7 years ago
(48-h)4 + 2h = 140.
-4h + 2h =140-192,
-2h=-52,
h = 26.
Archita yadav said:   7 years ago
140/2 = 70,
70-48 = 22 (number of cows).
48-22 = 26 (number of hens).
Shubham yadav said:   7 years ago
2 legs of formula= 2H - L/2.
Solve = 2 * 48 - 140/2
= 96 - 70
= 26.
Shivu said:   7 years ago
Number of legs/2- head= value of 4 legs animals.
Post your comments here:

Your comments will be displayed after verification.

Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers