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
Answers were Sorted based on User's Feedback
Answer / tam
the ratio is coming
1:1
1:2
1:4........
so the ans is 80
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / praveen
let c be the quantity eaten by each cow per one day...
let g be the grass quantity...
then from the first statemet 40*(c)*40=g
then c = g/(1600)
now consider 20 cows...each day they will take 20*(c)grass
i.e., 20*(g/1600)=g/80...
=> each day they complete g/80th part.
therefore they can complete in 80 days...
now come to the second statement...
for 30 cows...30(g/1600)...t.e., they can complete in
160/3 days ...so second statement is wrong...
Is This Answer Correct ? | 3 Yes | 2 No |
Answer / vishal pitaliya
as the no cows are decreasing no of days will increase
so ans would be 80
40--40
30--60
20--80 (b)ans
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / surya teja challapalli
No of days is inversely proportional to no of cows.
Here no of cows is decresing by 10,no of days increasing by
20.
40->40
30->60
20->80
No of days taken by 20 cows to eat the grass=80.
Is This Answer Correct ? | 2 Yes | 1 No |
There is six letter word VGANDA . How many ways you can arrange the letters in the word in such a way that both the A's are together.
A car averages 55 mph for the first 4 hours of a trip and averages 70 mph for each additional hour. The average speed for the entire trip was 60 mph. How many hours long is the trip?
The average score of a cricketer for 13 matches is 42 runs. If his average score for the first 5 matches is 54, then what was his average score (in runs) for last 8 matches?
4 lemons = 1rupees,1 mango = 1 rs,1 jackfruit =15rs, Calculate in such a way that there should be total of 100 rs and total of 100 fruits
Who is known as CR
Two circles , one circle is inscribed and another circle is N outscribed over a square. What is the ratio of area of inner to outer circle.
A shopkeeper bought a watch for Rs.400 and sold it for Rs.500.What is his profit percentage?
If a certain computer is capable of printing 4900 monthly credit card bills per hour, while a new model is capable of printing at a rate of 6600 per hour, the old model will take approximately how much longer than the new model to print 10000 bills?
A batsman average was 15.at last innings he took 23 runs then his average became 16.how much run he should take to make his average 18?
How many mod 3 counters are required to construct mod 9 counter.
A sequence is given. You should find out error & write correct answer.2,3 6,7 14,15 29,46
what is the least perfect square divisible by8, 9 and 10?