a plane is ruled with parallel straight lines at equal distance of 2a..... a needle, 2l long (l
is thrown on the plane at random....find the probab. that d needle will hit any of the lines....
There is a railway line in East-West direction. Three railway stations—A, B and C are on the railway line, with A being towards west and C being towards east and B between A and C. Ram is standing to the south of B railway station at a distance of √3 km. He is 2 km away from A station and 2√3 km away from C station. A train travelling eastward is approaching A station.
The speed of train and Ram are such that if Ram had walked at his normal speed, he would have just caught the train either at A or C. However Ram decides to walk up north towards B station and board the train there. On reaching B station, he realizes that the train does not halt there. Therefore he decides to walk towards C station. As he is on his way to C, he receives a call from his brother saying that the train has just left A and he should better run lest he would miss the train.
How fast should Ram run as a percentage of his normal walking speed in order to just catch train at C? For this purpose, halting time of the train at A, time spent by Ram at B and time spent for the phone call may be considered negligible.
(a) 73.2% faster
(b) 100% faster
(c) 86.6% faster
(d) No change needed
I dont have the answer !
I got 73.2%
Please try !
Ratio of "the total number words starting with a vowel" to "the total number of words starting with a consonant", where each word is formed from the letters of the word MONUMENT is ??
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A very good Question [XAT 2011 - 5marks]
If x = (9 + 4sqrt(5))^48 = [x] + f , where [x] is defined as integral part of x and f is a fraction, then x(1–f) equals –
A. 1
B. Less than 1
C. More than 1
D. Between 1 and 2
E. None of the above
solve...plz put down ur approach
x men can complete x work working for x hours a day for x days
then y men working y hours a day for y days can complete ______ work ??
Ques : The first n natural numbers, 1 to n, have to be arranged in a row from left to right. The n numbers are arranged such that there are an odd number of numbers between any two even numbers as well as between any two odd numbers. If the number of ways in which this can be done is 72, then find the value of n.
Answer Choices :
6
7
8
More than 8
What will be the unit digit of the quotient we get when 10^10000 is divided by (10^100 + 3)
What will be the unit digit of the quotient we get when 10^10000 is divided by (10^100 + 3)
A number N expressed to base 5 is 2323....23 upto a total of hundred digits. The remainder when N^4231 is divided by 4 is..
() 0
() 1
() 2
() 4
OA- ?
In a polygon, angles measured in degrees are integers. The smallest angle is 154 and only one of the angles has this measure. The polygon must have
a. a maximum of 336 sides.
b. a minimum of 15 sides.
c. atleast three angles of different measure
d. one angle equal to179 degree
e. more than one of the above
I dont have the answer !
Kindly post your method !
if the product of n positive integers is n^n , thein their sum is
- equal to n + 1/n
- a negative integer
- never less than n^2
- equal to n
0 voters
7 People in a room. What is the probability that exactly 2 of them were born on the same day of the week?
#XNQSG
Anyone for CAT14 prep?😍
Number of digits in 20! ??
Q.) Ten tickets are numbered 1,2,3.........10. six tickets are selected at random one at a time with replacement. prob that largest no. appearing on the selected ticket is 7 is ??
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if [a] denotes the sum of m real positive nos. and [b] denotes the sum of n positive real numbers as given below(where [x] denotes the greatest integer function less than equal to x ) :
[a] = [s1] +[s2] + [s3] + [s4] + ..... [sm] + 4 ;
[b] = [t1] + [t2] + [t3] + [t4] + ..... [tn] + 3 ;
then what can be the min. possible value of [a] + [b] ?
Options: 4/3/7/9/cannot be determined
@Dexian for ur loneliness 😛Out of 100 people in office. 50 walk to work, 55 take the bus, 66 take train. 9 use to take all three of those. Number of people who walk and take train but do not take bus is 4/3 times number of people who train and bus but do not walk.
Q. What could be minimum number of people who would not take train or bus.
Q. what could be maximum number of people taking only train ??
I need to check 3 cases to get answer, any easy method ??????
53^53 - 27^27 is certainly divisible by
79
10
11
easy
