Official Quant thread for CAT 2013

MBA CAT 2024
32762

hi puys ,


plz reply to my doubt and copy me..

2 trains start from A & B towards B & A respectively.Train from A starts at 11 P:M and reaches B at 5 P:M the next day .Train from B starts at 10 P:M on the same day on which the train starts from station A and reaches A at 6 A:M the next day.At what time will they cross each other??

OA 3:51 A:M

thanks in advance
32763

How many integral solutions are possible [root(n) - root(23*24)]^2

32764

a box has 2 tennis, 3 cricket, 4 squas balls.3 balls are drawn in succession WITH REPLACEMENT.Prob that all 3 are of the same type..Ans given is 11/81 whereas it shud clearly be 91/729!!!😠


32765
@giyan @techsurge This was the diagram in reference to yesterdays venn diagram question
Sorry for the messy drawing :gm:
this is part A of the question ie minimum overlap = 15
do similarly for part B
32766

How to find number of onto functions from a set A (m elements) to set B (n elements).


32767

N is a set of natural numbers less than 500 which can be written as sum of two or more consecutive natural numbers. Find max number of elements in N

32768

Find the smallest number that wh en divided by 7, 8 and 9 leave a remainder of 5, 4 and 2


answer and steps, please, thanks.
32769

A line passing through the origin cuts 2 parallel lines 5x+12y=26 and 10x+24y = 39 at points P and Q respectively. Find the ratio in which the origin divides the line segment joining P and Q

32770

Find the shortest distance of the point ( 6,-9 ) from curve y=x^2-12x+32 👍

32771

What is the 4800th term for the series 1 3 3 3 5 5 5 5 5 7 7 7 7 7 7 7 ......?👍

32772

A total of 768 balls are arranged in a pile of 9 layers.The nth layer from the top (3

32773

For a regular polygon of n sides the ratio of external angle to internal angle is an integer. What is no of possible values for n? 👍

32774

A newsagent sells the dailies Hindu, Express and Mail in equal number to 906 persons. 21 persons get Express and Mail, 36 get Hindu and Mail, 27 get Hindu and Express and get 9 all the three papers.The percentage getting Hindu or Express but not Mail is

1. nearly 64%

2. less than 60%

3. more than 65%

4. 65%

5. can't be determined

32775

Q2

QuantExpert - Q.O.D


32777

Rajiv Ratan Ram wants to kill time by writing something meaningful, but because of lack of proper thoughts, he starts writing all the natural numbers (starting from 1) in order. He is to stop as soon as he has used any one digit 119 times. What is the sum total of the numbers he has written by the time he stops?

(1) 16653

2) 16290

(3) 16471

(4) 16110

32778

If the sum of the number formed by the first two digits and the last two digits of a four digit number is equal to the number formed by the middle two digits (Example 1978, 19 + 78 = 97), the number is called as a peculiar number. If all peculiar numbers are arranged in ascending order, find the sum of peculiar numbers just before and after 1978.

(1) 2876

(2) 4285

(3) 3876

(4) 4175

32779

In how many ways can 7 rings of different colours be worn on 5 fingers of one hand?

32780

What is the 4800th digit for the number 1333555557777777 ......?😠😠

(or any XYZ digit)

32781

@Devanki

A newsagent sells the dailies Hindu, Express and Mail in equal number to 906 persons. 21 persons get Express and Mail, 36 get Hindu and Mail, 27 get Hindu and Express and get 9 all the three papers.The percentage getting Hindu or Express but not Mail is





1. nearly 64%



2. less than 60%



3. more than 65%



4. 65%



5. can't be determined



2.

32782

there are 5 letters and 3 addressed envelopes. Only 3 letters out of 5 corresponds to the 3 envelopes.


i. the number of ways in which all the letters are put in wrong envelope.

ii. Number of ways in which atleast 2 letters are put in wrong envelope.

  • 31,51
  • None of the above
  • 32,51
  • 31,52

0 voters