A,B and C have a total of 80 coins among them.A triples the no of coins with the others by giving them some coins from his own collection.Next,B repeats the same process.After this,B has 20 coins left.Find the no of coins B had in the beginning?
a)22 b)20 c)18 d)24
The ans is 20.Please explain the process to arrive at the answer.
Define a no K such that it is the sum of the squares of first M natural numbers(i.e. K= 1^2 +2^2 +3^2....+M^2) where M is less than 55.How many values of M exist such that K is divisible by 4?
a)10 b)11 c)12 d)none of these
Please explain the thought process too.
Hey, can anyone please provide me with the previous years CAT question papers. Also, it would be of great help if I can get Time and CL mock papers as well.
Thanks in advance
1*2*3*4*5.....*16 . What will be the remainder when this is divided by 17. Answer with logic pls
1, 3/2, 5/4, 7/8, 9/16........ Find sum uptill infinity. Please give the solution for this
In the X-Y coordinate system, the area of the region bounded by the relation |x+y|+ |x|=6 is.. . Logic pls
Puys I am looking for some good questions on functions...like finding area of |X| with x and y axis... sort of question ..please suggest a source...@chinki93 @Going_High
The Marked Price of a painting, with a shopkeeper, is Rs. R1. He gives three successive discounts of x% each and thereby sells it at Rs. 3,362.80. Find the approximate value of R1, if the reduction in price due to the second discount is Rs. 415.
Chief of Inka tribe has decided that calender dates in his clan will be written in the format MM/DD/YY.Holiday will be on date where YY=MM*DO. Maximum possible caes of holiday in a year will be?
N = (323232.....till 50 digits) in base 9. What is the remainder when N is divided by 8?
a) 1 b) -1 c) 0 d) 3
What all topics can we leave in QA? or is it advisable to complete the whole syllabus? i am a working professional and have limited time to devote to preps. So m stuck at a point where m nt able to decide whether to work on my weak areas(functions,set theory etc) or start a new topic like P&c which is vast in itself. Any advice in this regard will be appreciated......TIA
When x^200 + 1 divided by x^2 + 1, the remainder would be
35^35^35 mod 31^31^31
the ratio of Harmonic mean between two +ve numbers to the inverse of their geometric mean is 12:13 .
then the numbers must be in the ratio
a)12:13 b)1/12:1/13 c)4:9 d)2:3 please explain ur approach
it takes the pendulum of a clock 7 seconds to strike 4 o' clock.how much time will it take to strike 11 o' clock?
a)18 sec b)20 sec c)19.25 sec d)23.33 sec
please explain ur approach.
It is possible to climb 
three steps in exactly four different ways.
How many ways can you climb ten steps? (in numerical value)