What is the highest power of 54 that divides 31! exactly?
a)4 b)7 c)9....pls show d entire process.
What is the highest power of 54 that divides 31! exactly?
a)4 b)7 c)9....pls show d entire process.
snipped..........................guess i was sleeping while reading the quesion ...
puys need help .............
arun , bikas and chandan have total of 80 coins. arun triples the no. of coins that bikas and chandan have by giving them coins from his own collection. now, bikas repeats the same process and at the end he is left with 20 coins. how many coins he initially had.
a.)11 b.)10 c.)9 d.)7
please reply with approach
could you please xplain the logic a bit more...didnt understand h ebold part
also when we have already added (1+3+5...) to calculate distance till a particular mango why do we need to add the previous distances as in we add 1 thhen we again add 1+3 and for 3rd we again add 1+3+5..
in a nut shell i didnt get anyhthing...:banghead:
2ndApr2011 Sayssnipped..........................guess i was sleeping while reading the quesion ...
I m getting the answer 5 and the 2nd condition given in the book is right becoz i m also thinking same condition....................
Is the answer right or any other??
hi,
please solve the following ques.
At a particular time in the 21st century there were seven bowlers in the indian cricket team's list of 16 players short listed to play the next world cup.Statisticians discovered that that if you looked at the number of wickets taken by any of the 7 bowlers of the current indian cricket team,the number of wickets taken by them had a strange property. the numbers were such that for any team selection of 11 players(having 1to 7 bowlers) by using the number of wickets taken by each bowler and attaching coefficients of+1,0,-1,to each value available and adding the resultant values,any number from 1 to 1093,both included could be formed. if we denote W1,W2,W3,W4,W5,W6,W7 as the seven values in ascending order,then what is the value of W1+2W2+3W3+4W4+5W5+6W6
Options
1) 2005
2)1995
3)1985
4) NONE OF THE ABOVE
the Problem is simple here it goes
54=2*3^3
therefore in short u need to find the maximum power of 3^3 that divides 31!
31! contains
31/3=10
10/3=3
3/3=1
therefore in 31 ! there are 3^14
so maximum 54 ^ would be 4 because if u divide it by 54^5 it will not completly divide
tarkamal Sayscan u pls explain the last line how 4 and 5 came after 3^14
puys reposting it please help .............
arun , bikas and chandan have total of 80 coins. arun triples the no. of coins that bikas and chandan have by giving them coins from his own collection. now, bikas repeats the same process and at the end he is left with 20 coins. how many coins he initially had.
a.)11 b.)10 c.)9 d.)7
please reply with approach
A tank of 425 litres capacity has been filled with water through two pipes, the first pipe having been opened 5hrs longer than the second. If the first pipe were open as long as the second, and the second pipe was open as long as the first pipe was open, the the first pipe would deliver half the amount of water delivered by the second pipe; if the two pipes were open simultaneously, the tank would be filled up in 17 hrs, How long was the second pipe open?
a)10hrs
b)12 hrs
c)15hrs
d)18hrs
pls post your approach
puys reposting it please help .............
arun , bikas and chandan have total of 80 coins. arun triples the no. of coins that bikas and chandan have by giving them coins from his own collection. now, bikas repeats the same process and at the end he is left with 20 coins. how many coins he initially had.
a.)11 b.)10 c.)9 d.)7
please reply with approach
pallavi70 Sayspuys pls solve this too.......
The selling price of two bicycles are Rs.600 and Rs.900.On first a man loses 20%.At what profit% should he sell the 2nd bicycle to neutralise the loss?
a)30% b)40% c)23%.
pls do show d entire process.
Puys please solve this one also , i am not getting the solution for this :
A tank in Gauri Apartments is full of water is fitted with pumps of equal capacity . Besides it is also fitted with a certain number of inlet pipes which are always kept open. When the tank is full , 10 pumps of equal capacity empty the tank in 12 hrs , while 15 pumps of the same capacity empty the tank in 6 hrs . In how much time would 25 pumps of the same capacity empty the tank , if the tank is initially full ? (All the pipes pouring water into the tank are always open )
a) 3 hrs b) 5/2 hrs c) 4 hrs d) 7/2 hrs
Answer is option d as given in the book but i am getting as 3 hrs
The selling price of two bicycles are Rs.600 and Rs.900.On first a man loses 20%.At what profit% should he sell the 2nd bicycle to neutralise the loss?
a)30% b)40% c)23%.
pls do show d entire process.
The selling price of two bicycles are Rs.600 and Rs.900.On first a man loses 20%.At what profit% should he sell the 2nd bicycle to neutralise the loss?
a)30% b)40% c)23%.
opzzz
In a game, the 1st person tosses a coin. If the outcome is head, he throws a die and the result is recorded as his score and he gets one more chance to toss the coin. If the outcome is tail then the next person gets a chace to toss the coin. What is theprobability that a person scores 35 points after 6 tosses in this game?
1) (1/32)(1/6)^5
2) (1/32)(1/6)^6
3) (1/64) (1/6)^6
4) (1/64) (1/6)^5
Is there some other book for the solutions of the block review tests...?
Just the answer key is given not the solutions..:(