Answer Posted / 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.

A works thrice as much as B. If A takes 60 days less than B to do a work then find the number of days it would take to complete the work if both work together?

1393

---

Complete the series..2 2 12 12 30 30 ?

1232

---

Argentina had football team of 22 player of which captain is from Brazilian team and goalki from European team. For remainig player they have picked 6 from argentinan and 14 from european. Now for a team of 11 they must have goalki and captain so out of 9 now they plan to select 3 from argentinian and 6 from European. Find out no. of methods avilable for it

1264

---

What is the 8th term in the series 1, 4, 9, 18, 35, 68, . . .

1391

---

(Momentum*Velocity)/(Acceleration * distance ) find units.

1216

---

how would you connect 8 dots with 3 lines.

1944

---

Want to get some material for apptitud e for banking preparation

2749

---

A contractor employed 200 men to complete a strip of highway in 200 days. After 150 days he found that only 3/5th of the strip is complete. How many additional men should be employed to complete the work on time?

1725

---

Sister's age is twice than that of the brother. If the brother's age is six, what is the sister's age after two years?

1302

---

If the area of a square has increased by 69%,by what % has its side increased?

1404

---

if the radius of the circle is increased by 6% then its area increased by

1260

---

There were 36 chairs. how many ways can they be placed such that all rows have equal no. of chairs and atleast three chairs are there in each row and there are atleast three rows.

1446

---

There are two queues at a discount store billing counter. In the first queue there are a1 customers all with b1 items in their cart, while in the second queue there are a2 customers all with b2 items in their cart. It takes t seconds to process each item and p seconds for each person to pay. A customer wishes to know which queue to join.Which one of these options gives the condition for the first queue to be the better queue to join?

1205

---

I want Canara Bank Question papers ? if u have this one send my mail. id - kuruba.sreekanth@gmail.com -regards

2194

---

A man spending half of his salary for house hold expenses, 1/4th for rent, 1/5th for travel expenses, a man deposits the rest in a bank. If his monthly deposits in the bank amount 50. What is his monthly salary ?

1457

---