An object moves along the number line from 10 to 20 by moving either 1 or 2 units each time it moves. How many different sequences of moves are possible?
please explain in detail
- 10
- 89
- 55
- 32
0 voters
let A be set of 4 digit nos. a1 a2 a3 a4 where a1>a2>a3>a4 then how many values of A are possible?
a) 126 b) 84 c) 210 d) none
In how many ways can 'mn' things be distributed equally among n groups?
a)mnPm*mnPn
b)mnCm*mnCn
c)(mn)!(m!)*(n!)
d)mnCm
e)none
Abhishek writes a test consisting of 100 questions, where the answer to each question is either
TRUE or FALSE. Abhishek's teacher announces that for every ο¬ve consecutive questions on
the test, the answers to exactly three of them are TRUE. Just before the test starts, the teacher
whispers to Abhishek that the answers to the ο¬rst and last questions are both FALSE.
(a) Determine the number of questions for which the correct answer is TRUE.
(b) What is the correct answer to the sixth question on the test?
(c) Explain how Abhishek can correctly answer all 100 questions on the test.
there are 5 copies of maths book , 4 copies of physics book and 3 copies of chemistry book the number of ways in which one or more book can be given away is ??
@pratskool..I concur with @psk.becks... Please find the attached image...so we get an unique solution for the above equation for any values of a and b other than 0. Am I doing anything wrong?
I had given CAT last year..and will be appearing again ...I had enrolled in TIMES and scored 88%ile..scored very badly in quant..I am confused regarding my preparation for Quant this year as to how to do on my own...where do i start from?
What is the remainder when 3^1024 is divided by 2^12? Can we use Euler's theorem here?
Gave CAT last year with 95 percentile in QADI , but this year when i gave first AIMCAT. I have done pathetic in QADI. Earlier, my strategy was to give more and more topic wise tests in TCYonline but guess this is not working. What shall i do.
Shall i go ahead with TCY or CL material or Arun Sharma.
Pls advise. Thx
Your neighbor has 2 children. You learn that he has a son, Joe. What is the probability that Joe's sibling is a brother?
The equation of two equal sides AB and AC of an isosceles triangle ABC are x+y=5 and 7x-y=3 respectively. What will be the length of the intercept cut by the side BC on the y-axis?
Your neighbor has 2 children. He picks one of them at random and comes by your house; he brings a boy named Joe (his son). What is the probability that Joe's sibling is a brother?
5 students are selected to participate in 3 diff competitions such that at least one participates in each competition,in how many diff ways can all the students participate in the competition?π
hey friends please help In a four digit number , the sum of the digits in the units place and tens place is equal to sum of digits in the hundreds and thousands places.the sum of the digits in the tens places and hundreds places is twice the sum of the other two digits . if the sum of the digits is more than 20 , then the digit in the units place is?????????????? please give me answer with detailed solution
- 8
- 6
- 7
- 5
0 voters
What is the remainder when product of 3 consecutive 4 digit nos is divided by 19?
The smallest of the 3 nos is a perfect square as well as a perfect cube of an integer?π
Let P(n) and S(n) denote the product and the sum, respectively, of the digits of the integer n. Find the smallest N such that 2N=3P(N)+2S(N).π»
In the Quantum CAT by Sarvesh Varma page 11...he speaks about two methods for finding the square root...first one is prime factorisation method...second one is division method....i could not understand the second one since he has said it short(we make pairs from the right side towards left and then solve????)....anyone pls help..and if there is any other simple method to find the square root of a large no such as 120409, 5793649....
Divide Rs500 among A,B,C,D so that A and B together get thrice as much as C and D together, B gets 4 times of what C gets and C gets 1.5 times as much as D. Now the value of what B gets is??? (Solvation with explanation)
bhai log! help!
In the figure below, a top view of a part of the first Team Immunity Challenge from Survivor: Caramoan is shown. This part of the challenge is simple: they have to fill all 8 boxes with sacks of rocks. Let us say that the dimension of the table is 10m by 18m and each hole is 2m by 2m. Find the probability that a tribe will finish the challenge exactly after the 20th throw. Assume that the sacks of rocks are just points and that every sack thrown ends up inside the rectangle. Express your answers in SCIENTIFIC NOTATION and use up to 5 SIGNIFICANT DIGITS.
A crew can row a certain course of the stream in 84 minutes, they can row the same course downstream in 9 minutes less than they can row it in still water. How long would it take to row down with the stream??? (Solution with explanation)
B) 63 or 12 minutes
C) 60 minutes
D) 19 minutes