Hi puys..
My doubt is from Geometry(Pg-360)
A circle with radius 2 is placed against a right angle.Another circle is placed in the gap between the circle and the right angle.what is the radius of the smaller circle?
Although the solution is printed in the book...but found the construction part confusing.
An arithmetic progression P consists of n terms. From the progression three different P1 P2 and P3 are created such that P1 is obtained the 1st 4th,7th .....terms of P, P2 has the 2nd, 5th , 8th........terms of P and P3 has the 3rd, 6th, 9th.......terms of P.It is found that of P1 P2 P3 two progressions have the property that their average is itself a term of the original progression P.Which of the following can be a possible value of n?
a.20 b.26 c.36 d.both a n b
Hi,
Please help me with this question:
A pipe can fill a tank in x hours and another can empty it in y hours. If the tank is 1/3rd full, then the number of hours in which they will together fill it is.....
My answer is coming out to be 2xy/3(y-x) but it is wrong as per book.Please suggest
Hi,
Please help me with this question:
A pipe can fill a tank in x hours and another can empty it in y hours. If the tank is 1/3rd full, then the number of hours in which they will together fill it is.....
My answer is coming out to be 2xy/3(y-x) but it is wrong as per book.Please suggest
The answer is erroneous according to me. What you have found out is right.
Hi,
Please help me with this question:
A pipe can fill a tank in x hours and another can empty it in y hours. If the tank is 1/3rd full, then the number of hours in which they will together fill it is.....
My answer is coming out to be 2xy/3(y-x) but it is wrong as per book.Please suggest
your approach seems to be correct!
2xy/3(y-x) should be correct
Hi, can someone help me with Chapter 9: Time and Work: LOD 2 Pg. 274 Question 22.
It takes six days for three women and two men working together to complete a work. Three men would do the same work five days sooner than nine women. How many times does the output of a man exceed that of a woman?
Ans. 6 times.
Thanks!
The number of natural numbers of of two or more than two digits in which digits from left to right are in increasing order is
The solution in Arun Sharma is as below
C(9,1) + C(9,2) + C(9,3) +C(9,4) + C(9,5) +C(9,6) ..... C(9,9)
But I have doubt with C(9,1) sich this will form one digit number which according to question should not be considered...
Please suggest.
PLease provide solution with xplainations of the following
A and B invest 20000 n 10000 respectively for a business at the start of a year.in each of the next six months after the 1st month A keeps removing 1000 while B keeps adding 1000.in the months that remain A keeps on adding 1000 while B keeps on removin 1000 every month. C joind them with 25000 3 months after the start and continued till end of the year.what will be the difference in the shares of C and B after a year if the total profit at end of the year is 117000
THANK YOU
PLease provide solution with xplainations of the following
A and B invest 20000 n 10000 respectively for a business at the start of a year.in each of the next six months after the 1st month A keeps removing 1000 while B keeps adding 1000.in the months that remain A keeps on adding 1000 while B keeps on removin 1000 every month. C joind them with 25000 3 months after the start and continued till end of the year.what will be the difference in the shares of C and B after a year if the total profit at end of the year is 117000
THANK YOU
@keanumalik : -
Here is the expanz for the question u posted :
A started with 20K and then 19K, 18K......14K (7th month) , 15K(8th month), 16K(9th month),.......19K (in 12th month)
B started with 10K and then 11K, 12K.......16K(7th month), 15K(8th month),14K (9th month).........11K(in 12th month)
C started with 25K (4th month), 25K, 25K , 25K , 25K ,25K , ................25K(till 12th month)
So ratio of profits of A:B:C = 204:156:225
= 68 :52:75
Therefore, difference in shares of C & B = (75 - 52) * 117000/(68+52+75) = Rs. 13800
rahul005 SaysScients in NASA were working on breaking a code of mars bound rocket sent by russians.Years of work bore fruit and they realized that the code is a 3 digit no. with different non zero digits A,B and C.They form all the possible 3 digit numbers using all these digits.To save the code they put different numbers so formed into three groups G1,G2 and G3.The sum of the numbers in G1,G2,G3 were found to be 1176,1167 and 321 respectively.Which of the following cannot be any digits of the numbers......a)6 b)1 c)5 d)7...pls do show d entire process.
A+B+C=12...
G1-G2=9..9 would appear if the units tens digit are reverse..and consecutive..
1,5,6
Ans:7
Hi,
Please help me with this question:
A pipe can fill a tank in x hours and another can empty it in y hours. If the tank is 1/3rd full, then the number of hours in which they will together fill it is.....
My answer is coming out to be 2xy/3(y-x) but it is wrong as per book.Please suggest
yeah the ans is correct...
=>((1/x)+(1/y))*p-(1/3)=1..
find the value of p...its the ans..
Missing Data
ques from alligations
a dishonest milkman purchased milk @ rs. 10/ litre and mixed 5 lt. of water in it .By selling i\the mixture @ rate of 10/lt he earns a profit of 25%. The quantity of the amount of the mixture that he had was ??
a. 15lt.
b. 20 lt.
c. 25lt.
d. 30 lt.
help me out on alligations....
ques from alligations
a dishonest milkman purchased milk @ rs. 10/ litre and mixed 5 lt. of water in it .By selling i\the mixture @ rate of 10/lt he earns a profit of 25%. The quantity of the amount of the mixture that he had was ??
a. 15lt.
b. 20 lt.
c. 25lt.
d. 30 lt.
help me out on alligations....
What is the highest power of 54 that divides 31! exactly?
a)0 b)1 c)4
What is the greatest power of 1000 which can divide 80! exactly?
a)16 b)20 c)6
What is the highest power of 54 that divides 31! exactly?
a)0 b)1 c)4
What is the greatest power of 1000 which can divide 80! exactly?
a)16 b)20 c)6
pls do show the approach of solving dis sort of prblms.
hi puys!!
i have a problem in average and alligations chapter of Arun sharma ...Please help me solve it
Three groups of companies : tata, birla and reliance announce the average of the annual profit for all years since their establishment.
The avg profit of tata is Rs. 75000 lakhs
The avg profit of birla is Rs. 64000 lakhs
The avg profit of reliance is Rs. 73000 lakhs
The avg profit of all results of tata and birla together is 70000 lakhs
The avg profit of all results of reliance and birla together is 69000 lakhs
Approximately what is the average profit for all three group of companies?
a) 70800 lacs
b) 71086 lacs
c) 70666 lacs
d) cannot be determined..
ques from alligations
a dishonest milkman purchased milk @ rs. 10/ litre and mixed 5 lt. of water in it .By selling i\the mixture @ rate of 10/lt he earns a profit of 25%. The quantity of the amount of the mixture that he had was ??
a. 15lt.
b. 20 lt.
c. 25lt.
d. 30 lt.
help me out on alligations....
did not get thru alligation concept.....but using arithmetical method (quite logical
), I got 25 as ans.
ques from alligations
a dishonest milkman purchased milk @ rs. 10/ litre and mixed 5 lt. of water in it .By selling i\the mixture @ rate of 10/lt he earns a profit of 25%. The quantity of the amount of the mixture that he had was ??
a. 15lt.
b. 20 lt.
c. 25lt.
d. 30 lt.
help me out on alligations....
I got the answer as 20lit...
profit 10% so actual mixture price 10*.75 =7.5 /lit
now using alligation
10 0(taking water as 0/lit)
7.5
7.5 2.5
so 3:1
here 1 ==5
3 ==15
total 20.
What is the highest power of 54 that divides 31! exactly?
a)0 b)1 c)4
What is the greatest power of 1000 which can divide 80! exactly?
a)16 b)20 c)6
pls do show the approach of solving dis sort of prblms.