A certain city has a circular wall around it, and the wall has four gates pointing north, south, east and west. A house stands outside the city, three kms north of the north gate, and it can just be seen from a point nine kms east of the South Gate. What is the diameter of the wall that surrounds the city

1.  6 km

2.  9 km

3.  12 km

4.  None of these

4

9 km

Explanation :
No Explanation available for this question

Let x, y and z be distinct integers, x and y are odd and positive, and z is even and positive. Which one of the following statements can not be true

1.  (x – z)2y is even

2.   (x – y)y2 is odd

3.   (x – z)y is odd

4.  (x – y)2z is even

4

(x – z)2y is even

Explanation :
No Explanation available for this question

A square, whose side is 2 meters, has its corners cut away so as to form an octagon with all sides equal. Then the length of each side of the octagon, in meters is

1.  (√2) /(√2+1)

2.   (2)/ (√2+1)

3.  (2)/(√2-1)

4.  (√2)/ (√2-1)

4

(2)/ (√2+1)

Explanation :
No Explanation available for this question

All the page numbers from a book are added, beginning at page 1. However, one page number was mistakenly added twice. The sum obtained was 1000. Which page number was added twice

1.  44

2.  45

3.  10

4.  12

4

10

Explanation :
No Explanation available for this question

x and y are real numbers satisfying the conditions 2 < x < 3 and – 8 < y < –7. Which of the following expressions will have the least value

1.  X2y

2.  Xy2

3.   5xy

4.  None of these

4

5xy

Explanation :
No Explanation available for this question

In a number system the product of 44 and 11 is 2124. The number 3111 of this system, when converted to the decimal number system, becomes

1.  406

2.  1086

3.  213

4.  691

4

691

Explanation :
No Explanation available for this question

A does 120 surveys in a week and gets Rs 3600. B is 1.2 times more efficient than A. Also, A is 25% more efficient than C. Each of them works for one week. Which of the following statements is not correct

1.  B gets 20% more than A

2.  A and C together get double of what B alone gets

3.  B gets 50% more than C

4.  A, B, C together get triple of what A alone gets

4

A and C together get double of what B alone gets

Explanation :
No Explanation available for this question

Manisha makes the 200 km trip from Mumbai in Pune at a steady speed of 60 km per hour. What is the amount of petrol consumed for the journey

1.  12.5 litres

2.  13.33 litres

3.  16 litres

4.  19.75 litres

4

13.33 litres

Explanation :
No Explanation available for this question

Manisha would like to minimise the fuel consumption for the trip by driving at the appropriate speed. How should she change the speed

1.  Increase the speed

2.  Decrease the speed

3.  Maintain the speed at 60 km/hour

4.  Cannot be determined

4

Decrease the speed

Explanation :
No Explanation available for this question

Raju has 128 boxes with him. He has to put atleast 120 oranges in one box and 144 at the most. Find the least number of boxes which will have the same number of oranges

1.  5

2.  103

3.  6

4.  Cannot be determined

4