ABC Corporation is required to maintain at least 400 Kilolitres of water at all times in its factory, in order to meet safety and regulatory requirements. ABC is considering the suitability of a spherical tank with uniform wall thickness for the purpose. The outer diameter of the tank is 10 meters. Is the tank capacity adequate to meet ABC's requirements A: The inner diameter of the tank is at least 8 meters. B: The tank weighs 30,000 kg when empty, and is made of a material with density of 3 gm/cc.

1.  1

2.  2

3.  3

4.  4

View Answer  
4
Correct Answer :

Explanation :
No Explanation available for this question

Consider integers x, y and z. What is the minimum possible value of x2 + y2 + z2 A: x + y + z = 89B: Among x, y, z two are equal.

1.  1

2.  2

3.  3

4.  4

View Answer  
4
Correct Answer :

Explanation :
No Explanation available for this question

The average weight of a class of 100 students is 45 kg. The class consists of two sections, I and II, each with 50 students. The average weight, WI, of section I is smaller than the average weight, WII, of Section II. If the heaviest student, say Deepak, of Section II, is moved to section I, and the lightest student, say Poonam of section I is moved to section II, then the average weights of the two sections are switched, i.e., the average weight of Section I becomes WII and that of Section II becomes WI. What is the weight of PoonamA: WII - WI = 1.0 B: Moving Deepak from Section II to I (without any move from I to II) makes the average weights of the two sections equal.

1.  1

2.  2

3.  3

4.  4

View Answer  
4
Correct Answer :

Explanation :
No Explanation available for this question

A confused bank teller transposed the rupees and paise when he cashed a cheque for Shailaja, giving her rupees instead of paise and paise instead of rupees. After buying a toffee for 50 paise, Shailaja noticed that she was left with exactly three times as much as the amount on the cheque. Which of the following is a valid statement about the cheque amount

1.  Over Rupees 22 but less than Rupees 23

2.  Over Rupees 18 but less than Rupees 19

3.  Over Rupees 4 but less than Rupees 5

4.  ver Rupees 13 but less than Rupees 14

5.  Over Rupees 7 but less than Rupees 8

View Answer  
5
Correct Answer :

Explanation :
No Explanation available for this question

Which of the following best describes an + bn for even n

1.  q(1/2)n (p + q)

2.  q(1/2)n (p + q)(1/2)n

3.  q(pq)(1/2)n-1 (p + q)(1/2)n

4.  q(pq)(1/2)n-1 (p + q)

5.  pq(1/2)n-1 (p + q)

View Answer  
5
Correct Answer :

Explanation :
No Explanation available for this question

"A game of 50" means a game in which the player scoring 50 points first is the winner. In a game of 50, A can give B 10 points. This means that when A scores 50, B scores 40 points. In a game of 50, A can give B 10 points, but B can give C 20 points. With the same efficiency how many points can A give C

1.  30

2.  25

3.  40

4.  50

View Answer  
4
Correct Answer :

30


Explanation :
No Explanation available for this question

2 pipes X and Y fill a tub in 10 min and 15 min resp. Both are opened and at the end of 5 minutes X is turned off. How much time will the tub take to fill

1.   3/2 min

2.  1/2 min

3.  4/3 min

4.  5/2 min

View Answer  
4
Correct Answer :

5/2 min


Explanation :
No Explanation available for this question

Walking at 2/3 of his usual speed a man is 2 hrs.late. Find his actual travel time

1.  8 hrs

2.  4hrs

3.  3hrs

4.  none of these

View Answer  
4
Correct Answer :

4hrs


Explanation :
No Explanation available for this question

A train after travelling 30 km from X meets with an accident and proceeds at 3/4 of the former speed and reaches by 45 min. late. Had the accident happened 10 kms further one, it would have arrived 15 min sooner. Find the original speed and distance.

1.  60km

2.  30 km

3.  50 km

4.  20 km

View Answer  
4
Correct Answer :

60km


Explanation :
No Explanation available for this question

A cat sees a rat 50 metres away from her and moves in the opposite direction at a speed of 12 km/hr. A minute later the rat sees her and gives chase at a speed of 15 km/hr. How soon will the rat overtake her

1.  5 min

2.  6 min

3.  2 min

4.  12 min

View Answer  
4
Correct Answer :

5 min


Explanation :
No Explanation available for this question
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