Official Quant thread for CAT 2013

plz solve ths..m nt gettng th ansr !!

This data sufficiency problem consists of a question and two statements labeled (A) and (B). You have to decide whether the data given in the statements are sufficient for answering the question.Maria came home from the mall with one-third of the amount of money she took to the mall. How much money did she take to the mall? (A) She bought a sweater with half of her money and spent Rs. 16 on food. (B) She spent three times as much to buy a sweater as she spent on food.

Statement (A) alone is sufficient, but statement (B) alone is not sufficient.

Statement (B) alone is sufficient, but statement (A) alone is not sufficient.

Both statements (A) and (B) together are sufficient, but neither statement alone is sufficient.

Each statement alone is sufficient to answer the question.

Statements (A) and (B) together are not sufficient to answer the question.

Which topic has the most no. of questions in cat?

  • Numbers
  • Geometry
  • Algebra
  • Modern Maths
  • Arithmetic

0 voters

f(x)=root of (x+1) g(x)= x^4+x^2+1 h(x)=g(f(x)) What is h(3)/g(3)

3/15
3/13
3/19
3/11
NOT
P.N (x+1) indicates the root of the entire term (x+1)

For a party, the first guest arrives 5 minutes after the scheduled time, the second 10 minutes after the scheduled time, and the third after 15 minutes and so on. As soon as each visitor arrives, he talks to one of the other visitors who are free and talks exactly for five minutes before moving onto the next. Every visitor talks to every other visitor. 30 minutes after the scheduled time, how many pairs of people will be talking? [Only two people talk with each other at any time]

1

2

3

4

5

As per Nilesh Numeralogis consultant, he should avoid the number 8 as far as possible. Nilesh has just taken delivery of his new car and is on the way to the RTO to get the Registration number for his car. He knows that the initial number is going to be GA – 01 (Thank God, no 8s here). But the remaining digits of the number are keeping him in suspense. What is the probability that his car number will be “lucky” for him? (Assume that the no. has four digits)

(9/10)^4

1– (1/10)^4

(8/9)^4

((9^4 – 1)/10^4 – 1)

None of these

Guyss..... when 16 people shake hands together..... then number of shakehands there...???

...Explain me plsss.. detailed....... 😃

@nikskrish @ibpsaspirants20 @nexus.anonymous @Shubhangi.VJ @Dev_MBApagal @devendrakvyas @piyaaaa @priya.23 @hatemonger @koool.Miike @UthnkUknwME @lobster24 @shaas @simi12 @ratnasen


Amit and Bharat run around a circular track running in the same direction. They started at the same point and at the same time. Amit's speed is four times Bharat's speed. Both of them have different number of tokens with them. Whenever one of them overtakes the other, the former gives the latter as many tokens as the latter already had, so that the number of tokens with latter doubles. However, if a person overtakes another at the starting point, then the latter gives half his tokens to the former. There is no exchange of tokens if a fractional value is encountered. It is known that Bharat started with one token and Amit finished with 70 tokens after a certain number of rounds. Which of the following could be the number of tokens Amit started with?

101

122

130

180

150

@jasneetdua : bhai check dis.ab uss Q mein agar FA ko join kr denge toh BF will divide triangle the triangle BEC in the ratio in which FA does in triangle FAC,which is 1:2.isse toh ni arah ans woh.

A potter makes 100 pitchers in the 1st hour. His efficiency decreases by 20% in 2nd hour, increases by 50% in 3rd hour, decreases by 15% in 4th hour and increases by 50% in 5th hour. If he has to work for more than 1 hr, how long should he work so that number of pitchers per hour will be maximum?

2 hours

3 hours

4 hours

5 hours

5.5 hours

(cot 15)^x+(tan15)^x=14 has m solutions

and (cot15)^x - (tan15)^x=8sqrt3 has n solutions.

what is the relation between m and n

a)m=n

b)m=n+1

c)n=m+1

d)none of these

Ratio of the earning of a b and c is 2:3:5, If A increases his earning by certain amount, B by double that amount and C by tripple that amount Which of the following could be the ratio of A and C after increasing.

7:17
9:22
13:40
16:45



What is the remainder when 4^99+6^99 is divided by 25???

There are 100 statements written on the board. Statement 1 is “only 1 statement among the 100 is false”. Statement 2 is “only 2 statements among the 100 are false”. Hence each nth statement reads “Only n statements among the 100 are false”. How many statements on the board are true if the last statement is “Only 100 statements among the 100 are false”?

0

1

50

5

Can't be determined

From a list of four movies, four friends discuss their favourite movies. At least 2 friends vote for Matrix, not more than 3 vote for Mummy, 1 votes for Alien and 2 vote for Jerry McGuire. If two friends have voted for exactly 2 different movies, and 2 friends for exactly 3 different movies, then how many votes did Matrix get?

2

3

4

5

Can't say

What will be the next term in

124, 112, 176, 420, 1488, (?)

(1) 8568 (2) 7140 (3) 5712 (4) 6150 (5) None of these


How many integral solutions are there to x + y + z + t = 23, when x >= – 1, y >= – 2, z>= 1 and t>= 2?

23C4

2600

1300

3900

None of these

If log83 = a and log35 = b, what is the value of log105 in terms of a and b?

  • 3a/b+1
  • 1+a/3b
  • 1 + 1/3ab
  • 3ab/(3ab+1)
  • ab/(3ab+1)

0 voters

A set S consist of 143 natural numbers each of which is a perfect cube. the maximum number of elements of S that one can always find such that each of them leaves the same remainder when divided by 13 is ?

Call a 7-digit telephone number d1d2d3d4d5d6d7 memorable, if the prefix sequence d1d2d3 is exactly the same as either of the sequences d4d5d6 or d5d6d7 (possibly both). Assuming, each d1 can be any of the ten decimal digits 0, 1, 2, …, 9, the number of different memorable telephone numbers is

19,810

19,910

19,990

20,000

19,890