Abhishek starts to paint a fence on one day. On the second day, two more friend of Abhishek join him. On the third day 3 more friends of him join him and so on. If the fence is completely painted this way in exactly 20 days, then find the number of days in which 10 girls painting together can paint the fence completely, given that every girl can paint twice as fast as Abhishek and his friends(Boys)(Assume that the friends of Abhishek are all boys).

1.  20

2.  40

3.  45

4.  77

View Answer  
4
Correct Answer :

77


Explanation :
No Explanation available for this question

A and B undertake to do a piece of work for Rs 600. A alone can do it in 6 days while B alone can do it in 8 days. With the help of C, they can finish it in 3 days, Find the share of C

1.  70

2.  75

3.  80

4.  85

View Answer  
4
Correct Answer :

75


Explanation :
No Explanation available for this question

There are 12 pipes that are connected to a tank. Some of them are fill pipes and the others are drain pipes. Each of the fill pipes can fill the tank in 8 hours and each of the drain pipes can drain the tank completely in 6 hours. If all the fill pipes and drain pipes are kept open, an empty tank gets filled in 24 hours. How many of the 12 pipes are fill pipes

1.  6

2.  8

3.  7

4.  5

View Answer  
4
Correct Answer :

7


Explanation :
No Explanation available for this question

Among four persons Prince, Queen, Raj and Sashi. Prince takes thrice as much time as Queen to complete a piece of work. Queen takes thrice as much time as Raj and Raj takes thrice as much time as Sashi to complete the same work. One group of three of the four men can complete the work in 13 days while another group of three can do so in 31 days. Which is the group that takes 13 days

1.  Prince, Queen, Raj

2.  Prince, Queen, Sashi

3.  Queen, Raj, Sashi

4.  Prince, Raj, Sashi

View Answer  
4
Correct Answer :

Prince, Queen, Sashi


Explanation :
No Explanation available for this question

Pipe A fills a tank of 700 litres capacity at the rate of 40 litres a minute. Another pipe B fills the same tank at the rate of 30 litres a minute. A pipe at the bottom of the tank drains the tank at the rate of 20 litres a minute. If pipe A is kept open for a minute and then closed and pipe B is kept open for a minute and then closed and then pipe C is kept open for a minute and then closed and the cycle repeated, how long will it take for the empty tank to overflow

1.  42 minutes

2.  14 minutes

3.  39 minutes

4.  None of these

View Answer  
4
Correct Answer :

None of these


Explanation :
No Explanation available for this question

A man takes 20 days to reach the point B under normal circumstances. But, due to the increasingly hostile weather conditions the distance they travel every day reduces by 20%. In how many days would the man reach the point B, taking into consideration weather conditions

1.  25

2.  50

3.  100

4.  None of these

View Answer  
4
Correct Answer :

None of these


Explanation :
No Explanation available for this question

A tank is fitted with 8 pipes, some of them that fill the tank and others that are waste pipe meant to empty the tank. Each of the pipes that fill the tank can fill it in 8 hours, while each of those that empty the tank can empty it in 6 hours. If all the pipes are kept open when the tank is full, it will take exactly 6 hours for the tank to empty. How many of these are fill pipes

1.  2

2.  4

3.  6

4.  5

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question

There are four varieties of pipes Pipe A, Pipe B, Pipe C and Pipe D. Each pipe can be either an inlet pipe or an outlet pipe but cannot be both. there are 5 tanks of equal volume. Tank P is filled by Pipe A and Pipe B Tank Q is filled by Pipe A and Pipe C Tank R is filled by Pipe A and Pipe D Tank S is filled by Pipe B and Pipe C Tank T is filled by Pipe C and Pipe D Time taken for the first 3 tanks (P, Q and R) to get filled are in the ratio 1:2:4 and the time taken for the S and T tanks to be filled are in the ratio 7:10. Find the outlet pipes among the 4 varieties.

1.  Pipes C and D

2.  Pipe D

3.  Pipes A and B

4.  Pipe A

View Answer  
4
Correct Answer :

Pipe A


Explanation :
No Explanation available for this question

A cylindrical overhead tank is filled by two pumps P1 and P2. P1 can fill the tank in 8 hr while P2 can fill the tank in 12 hr. There is a pipe P3 which can empty the tank in 8 hr. Both the pumps are opened simultaneously. The supervisor of the tank, before going out on a work, sets a timer to open P3 when the tank is half filled so that the tank is exactly filled up by the time he is back. Due to technical fault P3 opens when the tank is one-third filled. If the supervisor comes back as per the plan what percent of the tank is till empty

1.  15%

2.  12%

3.  10%

4.  None of these

View Answer  
4
Correct Answer :

10\%


Explanation :
No Explanation available for this question

A and B working together can finish a job in T days. If A works alone and completes the job, he will take T+5 days. If B works alone and completes the same job, he will take T+45 days. What is T

1.  25 Days

2.  60 Days

3.  15 Days

4.  None of these

View Answer  
4
Correct Answer :

15 Days


Explanation :
No Explanation available for this question
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