two non-zero real nos, a and b, satisfy ab=a-b. Which of the following is a possible value of (a/b) + (b/a) - ab ?
Guys soln plz
- 1/2
- 2
- -1/2
- 1/3
- -2
0 voters
the median of the list
n, n+3, n+4, n+5, n+6, n+8, n+10, n+12, n+15
is 10. what is mean?
- 4
- 11
- 10
- 7
- 6
0 voters
the marked price of a book was 30% less than retail price. A purchased the book for half the M.P. What % of the suggested retail price did A pay?
- 65%
- 25%
- 30%
- 35%
- 60%
0 voters
there are unique integers a2,a3,a4,a5,a6,a7 such that
5/7 = (a2/2!) + (a3/3!) + (a4/4!) + (a5/5!) + (a6/6!) + (a7/7!)
where ai belongs to [0,i] for i=2,3,4,...7.
Find a2+a3+a4+a5+a6+a7.
guys approach plz
- 8
- 9
- 10
- 12
- 11
0 voters
the num of ordered pairs of integers (m,n) for which mn>=0 and
m^3 + n^3 + 99mn = 33^3
is equal to?
guys approach and how to deal with such ques...!!
- 33
- 3
- 2
- 99
- 35
0 voters
in a race btw 2 teams of 5 each, a runner who finishes in nth position contributes n to his team's score. the team with lower score wins. if there are no ties, how many different winning scores are possible?
guys approach plz....
- 10
- 13
- 126
- 120
- 27
0 voters
Inside an Equilateral Triangle there is a point which is at a distance of 5,12 & 13 from the three vertices. find the area of triangle.
What is the angle between the lines represented by (x + y)^2 - 2k(x + y) - 15 k^2 = 0?
Need explanation -0
in a square pyramid, the ratio of the side of the base to the slant height is 4 : 5. If the area of the base is increased by 56.25% and the slant height is reduced by 40%, then what is the percentage change in the total surface area of the pyramid?
any shortcut approach??
- 2.3%
- 2.5%
- 1.8%
- 2.1%
0 voters
Hi Puys, Hope that your preparation is going on very well. I made a few videos on Numbers concepts. Here is one video of Divisibility Rules:
Find the sum of all 4 digit numbers that can be formed with the digits 0,2,3,5 using each digit exactly once.
Find the number of ordered triples(x,y,z) of non negative integers such that x≤y≤z and x+y+z=100.
A cylinder must be placed inside a right circular cone of base radius 7 cm and height 14 cm such that one of its flat surfaces rests on the base of the cone. What can be the largest possible volume (in cm3) of the cylinder.?
Remainder when 1234567891011..........................979899 is divided by 216??
CL Mock Unproctored ques
All the first 150 positive multiples of 3 are placed side by side .What is the sum of all the digits of the number so formed ?
For the subjective questions, when we are asked to calculate the answer to 2nd decimal point , should we really use the calculator to get the exact answer ?
One of the questions when solved asked to calculate the value of 30 * (square root of 2)
I calculated it as : 30 * 1.414 = 42.42
However the OA is 42.43.
As per the solutions , they calculated it as :
30 * 1.4142 = 42.426 ~ 42.43 (rounded off to 2 decimal points)
Do we need to take care of such situations as well ?
FInd the remainder 382382382382.......upto 300 digits . when divided by 101 and also explain the method