Interested to Buy Any Domain ? << Click Here >> for more details...
In a grass field, If there are 40 cows, they could eat for
40 days. If there are 30 cows, they could eat for 60 days.
Than if 20 cows, How much day they could eat?
a) 60 b) 80 c)55 d)50
- 32 Answers
- 58150 Views
- IBM, Reliance, TCS, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / lime
40
40
30
60
- 10 cows
+ 20 days
if 40 cows can eat for forty days
then 20 cows can eat for 80 days
| Is This Answer Correct ? | 14 Yes | 2 No |
Answer / subash
All, the choice given are wrong ...
Let 'x' be the amount of grazed by a cow per day,
Let 'y' be the growth rate of grass per day,
Let 'z' be the amount of grass present initially,
So, 40 cows can graze (40*x) amount of grass per day and
(40*x*40) amount of grass for 40 days.
For 40 days, the growth of grass is (40*y)
So, (40*x*40) = (z + 40*y)
For 30 cows it takes 60 days, so,
(30*x*60) = (z + 60*y)
so, 1600x - 40y - z = 0 ----- 1
1800x - 60y - z = 0 ----- 2
Subtracting we get, 10x = y , Sub. 10x=y in 1 or 2, we get z
= 120y or z = 1200x
For, 20 cows,
20*x*N = z + N*y
Sub, 10x=y and (z=120y or 1200x), we get N = 120
Therefore, for 20 cows it takes 120 days to graze.
| Is This Answer Correct ? | 9 Yes | 0 No |
Answer / ayyangar
options are suspectable...
isn't it?
answer is 120
For 25 cows the days required are 80..
observe the equations
(40*x-g)*40=(30*x-g)*60=(20*x-g)*n.
where x is grass units per a cow,
g grass units incresed.
n is number of days reqired...
| Is This Answer Correct ? | 10 Yes | 3 No |
Answer / b.saravanan
answer is b)80 because the number of cows (20) which is
less than 30cows so obviously it will eat for more than 60
days
| Is This Answer Correct ? | 6 Yes | 3 No |
Four concentric circles are given. The radius of 1st circle is x. Next is 2x, then 3x and 4x. Given that area between 2nd and 1st is A and 4th and 3rd circles being B. Find ratio of A to B
A ship started from port and moving with I mph and another ship started from L and moving with H mph. At which place these two ships meet ?
If 2x-y=4 then 6x-3y=?
14 Answers BSRB, EA Electronic Arts, Emphasis, Unisys,
You are in a boat with ur mother and father . You got that the boat is getting in the water then to whom u will save firstly ur mother or ur father ? Why or why not?
22 Answers Apollo, Indian Army, Patni, SSB,
send me sbi previous clerical examinatiom question with answer o my email id alongwith sample question with answer
2 12 30 56............. series?
Three men A,B,C can complete a work separately in some specified days(may be6,7,8).If they do the work together by alternate days. Then how many days need to complete the work?
what is ment by SEBI?
16 Answers Genpact, ICICI, PIMT, State Bank Of India SBI,
if clouds are air, air are water and so on where birds fly?
19 Answers Cognizant, Patni, Vision Infotech,
55*55*55+45*45*45/55*55-55*45+45*45
One watch is showing 30 past 3 .What is the angle between minutes & hours hand?
What is bull and bear market
English 
