ans and method for the question attached as image.
a^2, b^2 and c^2 are in AP, then b+c, c+a, a+b are in
- HP
- AP
- GP
- none of these
0 voters
for practice 😃
previous year cat questions
In how many ways can a selection be made of 5 letters out of 5As,4Bs, 3Cs,2Ds and 1E?
a)70
b)71
c)15C5
d)15P5
e)none
There are 8 orators A,B,C,D,E,F,G and H. In how many ways can the arrangement be made so that A always comes before B and B comes before C?
a)8!/3!
b)8!/6!
c)5!3!
d)8!/(5!3!)
There are 4 letters and 4 envelopes . Find the no. of ways in which only one letter goes in the wrong envelope?
a)4^3
b)4c1+4c2+4c3+4c4
c)4c0+4c1+4c2+4c3
d)0
all possible six digit numbers, in each of which the digits occur in non-increasing order (from left to right) are written in an increasing order.. What is the 500th number of this sequence..
Answer not known yet..kindly share your answers along with the approachFind the set of values of p for which the roots of equation x^2-px+1=0 are greater than unity?
- none of these
- p>2
- p<2
- -2<p>&lt;2</p>
- no such value exist
0 voters
Anybody from Jaipur/Rajastha??? Can come to this thread....... we can make a study group and do the group study.
CAT 2013 Jaipur/Rajasthan Study Group : CAT & Related BSchools : PaGaLGuY Forums
CAT 2013 Jaipur/Rajasthan Study Group : CAT & Related BSchools : PaGaLGuY Forums
one finds that in a population of 100,000 females, 90% can expect to live to age 60, while 60% can expect to live to age 80. Given that a woman is 60, what is the probability that she lives to age 80?
2/3
3/5
2/5
1/5
what two-digit number is less than the sum of the square of it's digits by 11 and exceeds their doubled product by 5?
- 15,95
- 15,95,12345
- none
- both of the above
- 95
0 voters
A PUZZLE
Consider the game of Let's Make a Deal in which there are five doors (numbered 1, 2, 3, 4, and 5), one of which has a car behind it and four of which are empty (have “booby prizes”). You initially select Door 1, then, before it is opened, Monty Hall opens two of the other doors that are empty (selecting the two at random if there are three empty doors among {2,3,4,5}). (We are assuming that Monty Hall knows where the car is and that he selects doors to open only from among those that are empty.) You are then given the option to switch your selection from Door 1 to one of the two remaining closed doors. Given that Monty opens Door 2 and Door 4, what is the probability that you will win the car if you switch your door selection to Door 3? Also, compute the probability that you will win a car if you do not switch. (What would you do?)
Ashish is studying late into the night. he opens his mother's cupboard without switching on the lights, knowing that there are 10 packets of chips and biscuits in the cupboard. He pulls out 3 packets from the cupboard, and all of them turn out to be chips. What is the probability that the snack cupboard contains 1 packet of biscuits and 9 packets of chips?
1) 6/552) 12/733) 14/554) 7/50
The cost of 3 bananas and 4 mangoes is Rs.21.If Amit can buy at most 4 bananas and 3 mangoes with Rs.20 and no more fruit,The maximum amount that could be left with Amit is
What is the speed of a train? I. The train crosses a pole in 20 seconds. II. The length of the train is 30 metres. III. The train crosses a 500 metre long platform in 50 seconds.
1) Only I 2) Only II 3) I and either II or III 4) Only III 5) I and III only
Puys, any Suggestions for Time, speed and distance chapter??
I am facing problems in circular races, races in other geometrical figures etc.
Any e-material or book that would help in clearing the concepts, not able to solve confidently the questions from various mocks! 😞
If equation ax^2+bx+6 doesn't have two distinct roots,what is the least value of (3a+b)?
- -2
- 2
- 0
- -6
- 3
0 voters