There are two water drums in my house whose volumes are in the ratio 1 : 5. Every day the smaller drum is   filled first and then the same pipe is used to fill the bigger drum. Normally by the time I return from my college i.e. at 1.30 p.m., the smaller drum would justbe full. But today I returned a little early and started drawing water from the well with the help of a bucket, poured one-third into thesmaller drum and the remaining into the bigger drum. I continued this till the smaller drum was filled. Immediately after that, I shifted the pipe into the bigger drum and went for lunch. Today if the bigger drum was filled in 12 minutes before its normal time, when wasthe smaller drum full  

1.  1 : 18 p.m.

2.  1 : 28 p.m.

3.  1 : 26 p.m.

4.  Cannot be determined

View Answer  
4
Correct Answer :

1 : 26 p.m.


Explanation :
No Explanation available for this question

Let Sn denote the sum of the squares of the first n odd natural numbers. If Sn = 533n, find the value of n.

1.  18

2.  20

3.  24

4.  30

View Answer  
4
Correct Answer :

20


Explanation :
No Explanation available for this question

In the figure alongside, triangle ABC is equilateral with area S. M in the mid-point of BC and P is a point on AM extended such that MP = BM. If the semicircle on AP intersects CB extended at Q, and the area of a square with MQ as a side is T, which of the following is true

1.  T =  S √2   

2.  T = S

3.  T =  S √3

4.  T = 2S

View Answer  
4
Correct Answer :

T = S


Explanation :
No Explanation available for this question

Which of the following can be the concentration of petrol in the second tank

1.  50%

2.  60%

3.  66 2/3%

4.  80%

View Answer  
4
Correct Answer :

80\%


Explanation :
No Explanation available for this question

If the concentration of petrol in the second tank is 75% and the cost price of kerosene is half that of petrol, then what is Govind Lal’s net profit percentage on selling the contents of the second tank given that he claims to sell the petrol at a profit of 25%  

1.  42 6/7% 

2.  66 2/3% 

3.  83 1/3%

4.  100%

View Answer  
4
Correct Answer :

42 6/7\% 


Explanation :
No Explanation available for this question

Auto fare in Bombay is Rs.2.40 for the first 1 km, Rs.2.00 per km for the next 4 km, and 1.20 for each additional km thereafter. Find thefare in rupees for k km.   (k ≥5)

1.  2.4k + 1.2(2k – 3)

2.  10.4 + 1.2(k – 5)

3.  2.4 + 2(k – 3) + 1.2 (k – 5)

4.  10.4 + 1.2(k – 4)

View Answer  
4
Correct Answer :

10.4 + 1.2(k – 5)


Explanation :
No Explanation available for this question

In the figure alongside, O is the centre of the circle, and AC the diameter. The line FEG is tangent to the circle at E. If∠GEC = 52°, find the value of ∠e + ∠c.

1.  154°

2.  156°

3.  166°

4.  180°

View Answer  
4
Correct Answer :

166°


Explanation :
No Explanation available for this question

Rekha drew a circle of radius 2 cm on a graph paper of grid 1 cm x 1 cm. She then calculated the area of the circle by adding up onlythe number of full unit-squares that fell within the perimeter of the circle. If the value that Rekha obtained was d sq.cm lessthan thecorrect value, then find the maximum possible value of d

1.  6.28

2.  7.28

3.  7.56

4.  8.56

View Answer  
4
Correct Answer :

8.56


Explanation :
No Explanation available for this question

In the above question what is the minimum possible value of d

1.  4.56

2.  5.56

3.  6.56

4.  3.56

View Answer  
4
Correct Answer :

5.56


Explanation :
No Explanation available for this question

If 6g - 8 = 4g - 6, then which of the following could be the value of g

1.  15

2.  32

3.  14

4.  1

5.  2

View Answer  
5
Correct Answer :

1


Explanation :
No Explanation available for this question
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