CAT DI LR section has become increasingly tough beginning from 2015. DILR used to have distinct Data Interpretation sets and Logical reasoning puzzles. It used to be about computation and ability to read charts, graphs and tables for the Data Interpretation and Logical reasoning used to have Family tree, grid puzzles, arrangement, tournaments, cubes as some standard forms of puzzles.Since 2015 this pattern has been broken. With passing years, even the distinction between DI and LR has come down significantly. All you get in that 40 minutes, are 4 high quality puzzles, with more than a few of them being significantly tough. Between CAT 2017 Question paper to CAT 2023 Question paper, you get to solve 102 actual CAT puzzles. This page intends to provide you just that. So, head on and crack those puzzles!
There are nine boxes arranged in a 3×3 array as shown in Tables 1 and 2. Each
box contains three sacks. Each sack has a certain number of coins, between 1 and 9, both
inclusive.
The average number of coins per sack in the boxes are all distinct
integers. The total number of coins in each row is the same. The total number of coins in
each column is also the same.
Table 1 gives
information regarding the median of the numbers of coins in the three sacks in a box for
some of the boxes. In Table 2 each box has a number which represents the number of sacks in
that box having more than 5 coins. That number is followed by a * if the sacks in that box
satisfy exactly one among the following three conditions, and it is followed by ** if two or
more of these conditions are satisfied.
i) The minimum among the numbers of
coins in the three sacks in the box is 1.
ii) The median of the numbers of coins in the
three sacks is 1.
iii) The maximum among the numbers of coins in the three sacks in the
box is 9.
What is the total number of coins in all the boxes in the 3^{rd} row?
How many boxes have at least one sack containing 9 coins?
For how many boxes are the average and median of the numbers of coins contained in the three sacks in that box the same?
How many sacks have exactly one coin?
In how many boxes do all three sacks contain different numbers of coins?
Three participants – Akhil, Bimal and Chatur participate in a random draw competition for five days. Every day, each participant randomly picks up a ball numbered between 1 and 9. The number on the ball determines his score on that day. The total score of a participant is the sum of his scores attained in the five days. The total score of a day is the sum of participants' scores on that day. The 2-day average on a day, except on Day 1, is the average of the total scores of that day and of the previous day. For example, if the total scores of Day 1 and Day 2 are 25 and 20, then the 2-day average on Day 2 is calculated as 22.5. Table 1 gives the 2-day averages for Days 2 through 5.
Table 1: 2-day averages for Days 2 through 5 |
|||
Day 2 | Day 3 | Day 4 | Day 5 |
15 | 15.5 | 16 | 17 |
Table 2: Ranks of participants on each day | |||||
Day 1 | Day 2 | Day 3 | Day 4 | Day 5 | |
Akhil | 1 | 2 | 2 | 3 | 3 |
Bimal | 2 | 3 | 2 | 1 | 1 |
Chatur | 3 | 1 | 1 | 2 | 2 |
What is Akhil's score on Day 1?
Who attains the maximum total score?
What is the minimum possible total score of Bimal?
If the total score of Bimal is a multiple of 3, what is the score of Akhil on Day 2?
If Akhil attains a total score of 24, then what is the total score of Bimal?
Odsville has five firms – Alfloo, Bzygoo, Czechy, Drjbna and Elavalaki. Each of
these firms was founded in some year and also closed down a few years later.
Each firm raised Rs. 1 crore in its first and last year of existence. The amount each
firm raised every year increased until it reached a maximum, and then decreased until the
firm closed down. No firm raised the same amount of money in two consecutive years. Each
annual increase and decrease was either by Rs. 1 crore or by Rs. 2 crores.
The
table below provides partial information about the five firms.
Firm | First year of existence | Last year of existence |
Total amount raised (Rs. crores) |
Alfloo | 2009 | 2016 | 21 |
Bzygoo | 2012 | 2015 | |
Czechy | 2013 | 9 | |
Drjbna | 2011 | 2015 | 10 |
Elavalaki | 2010 | 13 |
For which firm(s) can the amounts raised by them be concluded with certainty in each year?
What best can be concluded about the total amount of money raised in 2015?
What is the largest possible total amount of money (in Rs. crores) that could have been raised in 2013?
If Elavalaki raised Rs. 3 crores in 2013, then what is the smallest possible total amount of money (in Rs. crores) that could have been raised by all the companies in 2012?
If the total amount of money raised in 2014 is Rs. 12 crores, then which of the following is not possible?
Anjali, Bipasha, and Chitra visited an entertainment park that has four rides.
Each ride lasts one hour and can accommodate one visitor at one point. All rides begin at 9
am and must be completed by 5 pm except for Ride-3, for which the last ride has to be
completed by 1 pm. Ride gates open every 30 minutes, e.g. 10 am, 10:30 am, and so on.
Whenever a ride gate opens, and there is no visitor inside, the first visitor waiting in the
queue buys the ticket just before taking the ride. The ticket prices are Rs. 20, Rs. 50, Rs.
30 and Rs. 40 for Rides 1 to 4, respectively. Each of the three visitors took at least one
ride and did not necessarily take all rides. None of them took the same ride more than once.
The movement time from one ride to another is negligible, and a visitor leaves the ride
immediately after the completion of the ride. No one takes a break inside the park unless
mentioned explicitly.
The following information is also known.
1.
Chitra never waited in the queue and completed her visit by 11 am after spending Rs. 50 to
pay for the ticket(s).
2. Anjali took Ride-1 at 11 am after waiting for 30 mins for
Chitra to complete it. It was the only ride where Anjali waited.
3. Bipasha began her
first of three rides at 11:30 am. All three visitors incurred the same amount of ticket
expense by 12:15 pm.
4. The last ride taken by Anjali and Bipasha was the same, where
Bipasha waited 30 mins for Anjali to complete her ride. Before standing in the queue for
that ride, Bipasha took a 1-hour coffee break after completing her previous ride.
What was the total amount spent on tickets (in Rs.) by Bipasha?
Which were all the rides that Anjali completed by 2:00 pm?
Which ride was taken by all three visitors?
How many rides did Anjali and Chitra take in total?
What was the total amount spent on tickets (in Rs.) by Anjali?
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