Please explain how to solve this.
Find the number of integral solution to |x| + |y| + |z| = 10.
- 304
- 202
- 502
- 402
0 voters
The probability that any one person selected at random was born on a Monday is 1/7. What is the probability, to the nearest percent, that of any 7 person chosen at random, xactly one was born on a monday,
- 50%
- 40%
- 20%
- 30%
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A person has 4 coins each of different denominations. What is the number of different sums of money the person can form (using one or more no of coins at a time)?
- 16
- 11
- 15
- 12
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There are 50 red balls and 50 black balls to be put in 2 boxes. What is the maximum probability of getting 2 red balls if one ball each is taken from both the boxes?
- 1/8
- None of these
- 1/4
- 1/2
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A speaks the truth in 30% of the cases. b lies in 40% of the cases and C speaks the truth in 25% of the cases. All of them have been interrogated in a murder case. What is the probability that the inspector would catch the murderer if he goes by majority of the answers given by A, B and C
- .24
- none of these
- .285
- .45
0 voters
Okay there is this question from LOD I of Arun Sharma's chapter on progressions, Q 37. I can't seem to comprehend the solution given at the end of the exercise. Kindly help.
Also, I feel that, Q42 from the same exercise is solved wrong in the book. I may be wrong. Here's what I feel. After a square is formed form the mid points of a larger square of side 8 units, we can never get a square of area 32 units (contrary to what is mentioned in the solution), by joining the mid points of a square of side 8 units. A square of 8 units will yield an area of 64 units, followed by a square of side 4 units (giving an area of 16 units, not 32 units), and so on. Is my procedure right or wrong?
Answers will be greatly appreciated
Anil stole his friend's ATM cum debit card. He knows that the password of the card is four digit and one of the digit is even number. he has also seen his friend punching three distinct digits which lie on either side of the diagonals on the keypad. The keypad consists of three rows and three columns. It doesn't have a zero. The top left corner has 1 and the digits are arranged in a sequence. Number in the first row/column is the least in the respective column/row.What is the probability that he punches the right password in exactly one of the three attempts allowed?
- 1/(960*3)
- Cannot be determined
- {959(2800) + 1}/ (960)^3
- 1/320
0 voters
Approach for this question?
If anybody interested in buying complete IMS CAT E-Test Series(with additional kit for other exams like XAT, IIFT etc.) at a lesser rate can PM me. Thought of going for CAT-16 but will be joining IIM-Udaipur now.
Click A,B,C strikes every hour. B slows down and tKes 2 minutes longer than A per hour while C becomes faster and take 2 minutes less than A PER HOURS. If they strike together at 12 midnight, when will they strike together again?
A watch loses 2/3% time during first week, and gains 1/3% the second week. If on a Sunday noon, it showed the right time, what time will it show at noon on the Sunday after the next
Sol pls
In how many ways can we arrange 10 people around a rectangular table such that there are 3 chairs on the longer side and 2 on the shorter side ?
Find the difference of areas of regular hexagons circumscribe , inscribe a circle of radius 12 cm?
p,q and r are real numbers such that 2 < p < 4, 5 < q < 10 and 12 < r < 20. What is the smallest integer value that (pq+r)/p can take?
- 11
- 9
- 8
- 12
0 voters
Old School Question :: How to get distance?
A train goes from station A to B everyday. One day, it travelled 4/5th of its original speed because of engine trouble at A and it reached station B at 6.15pm. If the trouble had occurred after train had travelled 100km from A, it would have reached B at 6.00pm.
Q1. What is normal speed of train?
A) 120 B) 100 C) 80 D) 60
Q2. What is reduced speed of train?
A) 120 B) 100 C) 80 D) 60
Q3. What is the total distance of the journey covered? (Answer not known)
First non zero integer from the right in (8330^1957 + 8370^1982) ? A. 3 b.1 c.9 d.none
If x, y and z are integers and x + y+ z = 3, then what is the minimum value of (1/x + 1/y + 1/z)?Approach?
- -1^(1/3)
- -1^(4/5)
- 3
- -3
0 voters
P = ( x+ 3y +5z)(1/x +1/3y+1/5z) and x + 6y = 6. For what value of z P will be minimum? Approach. I
- 5/3
- 2/5
- 1/5
- 3/5
0 voters