If xy2z3 = 212 32, where x, y and z are positive real numbers, then find the minimum value of 3x + 2y + z.
Please explain how to solve these questions.
Question has been seen many times in CAT
If x*y^2*z^3 = 2^12*3^2
, where x, y and z are positive real numbers, then find the minimum value of 3x + 2y + z.Please explain how to solve these questions.
Question has been seen many times in CAT
If x*y^2*z^3 = 2^12*3^2, where x, y and z are positive real numbers, then find the minimum value of 3x + 2y + z.
Please explain how to solve these questions.
Question has been seen many times in CAT
How many four-digit perfect squares 'abcd' are possible such that 'dcba' is also a four-digit perfect square and is also a factor of 'abcd'? (given a
d)
Please explain the approach for solving below question as well:
2x+3y=15, find the maximum value of x^2*y^3
N=2^2*3^3*5^2*10^2,if K is any whole number then how many factors of N are in form of 2k+1
- 19
- 40
- 36
- 20
0 voters
e-Book on Number System can be downloaded from here:
A number of the form ababac is divided by 37. The remainder can be -
1)7
2)19
3)23
4)13
A point whose coordinates are both integers is called a lattice point. How many lattice points lie on the hyperbola x2 – y2= 20002?
Hello people,As the earlier number system thread had more than 10k replies,we have closed the old one and presenting to you a part 2 of the same Please continue with the discussions of Number system problems here,henceforth.Here is the link to the old thread:http://www.pagalguy.com/discussions/number-system-25000852Also,for getting the concepts,here is a good thread for the same:http://www.pagalguy.com/discussions/conceptstotal-fundas-25023536the official Quant thread for unsorted queries:http://www.pagalguy.com/discussions/official-quant-thread-for-cat-09-ii-july-09-onwards-25042674/1605026Hope that helps.All the best puys
hey guys,
could u pls help me with how to solve 'divisible by' type questions.
I came across one while mock test. But do no't know the solution.
Please if somebody knows how to solve , state with all steps for easy understanding,
[(7^20) - 1] is divible by ?
Options were a) 8 b)15 c)17 d)both 13 and 17
Answer provided was a)8 .
But they did not provide the steps to solve.
Even their answers for most questions seems to be incorrect.
Thanks in advance.
I m graduation third year student. is there any certificate for it which I bring at CAT exam test centre pls ans me as fast as possible
- no
- yes
0 voters
while solving one problem i faced issue with this LCM formula
LCM of fractions = LCM of numerators / HCF of denominators
Method1 :
I was to find LCM of 1.2 and 2.
1.2 = (12/10)
2=(2/1)
LCM of [(12/10),(2/1)]=[LCM of (12,2)]/[HCF of(10,1)]
LCM of (12,2) = LCM of [{(2^2)*3},2]/[HCF of(2*5,1)]
But
LCM of [{(2^2)*3},2]=(2^2)*3 =12
[HCF of(2*5,1)]=1
therefore,
LCM of (1.2,2)=12/1 = 12 (which is wrong)
Method2 :
1.2 = (12/10)
2=(12/6)
LCM of [(12/10),(12/6)]=[LCM of (12,12)]/[HCF of(10,6)]
But
LCM of [12,12]=12
[HCF of(10,6)]=HCF of(2*5,2*3)=2
LCM of (1.2,2)=12/2 = 6 (which is correct)
But I did not get what wrong am I doing in Method 1 ?
how many numbers upto 100 are coprimes to 19?
1)99 2)95 3)5 4)80
approach plz
a 4 digit number "aabb" is a perfect square. what is the sum of digits of the number?
1)22 2)9
3)7 4)10
a number when divided by a divisor leaves a remainder of 5 and when divided by twice the divisor leaves a remainder of 45. find the divisor
a)40 b)20 c)10 d)all of the above
Painted Cube Problems .... I just found a nice tricks here on the same...
https://www.aptidude.com/index.php?cmd=HangOutZone&frdid;=1716&threadid;=191&page;=1
e-Book on Number System can be downloaded from here:
For how many integer values of N,N^2+24N+96 a perfect square
a)0 b)1 c)2 d)3
How many five-digit perfect squares 'abcde' are possible such that 'edcba' is also a four-digit perfect square and is also a factor of 'abcd'? (given a d)
- 56
- None of above
- 98
- 76
- 23
- 76
- 45
0 voters
Find the largest 2 digit prime number that divides 200C100 ?
a)67 b)97 c)61 d)73