CAT DILR Session – CAT 2017 Paper Slot 1 (2 Sets) - Videos

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Set No:1 – 2:24
There were seven elective courses – E1 to E7 – running in a specific term in a college. Each of the 300 students enrolled had chosen just one elective from among these seven. However, before the start of the term, E7 was withdrawn as the instructor concerned had left the college. The students who had opted for E7 were allowed to join any of the remaining electives. Also, the students who had chosen other electives were given one chance to change their choice. The table below captures the movement of the students from one elective to another during this process. Movement from one elective to the same elective simply means no movement. Some numbers in the table got accidentally erased; however, it is known that these were either 0 or 1.
Further, the following are known:
1. Before the change process there were 6 more students in E1 than in E4, but after the reshuffle, the number of students in E4 was 3 more than that in E1. –
2. The number of students in E2 increased by 30 after the change process.
3. Before the change process, E4 had 2 more students than E6, while E2 had 10 more students than E3.
The table can be found inside the video.

1. How many elective courses among E1 to E6 had a decrease in their enrolments after the change process?
A) 4 B) 1 C) 2 D) 3
2. After the change process, which of the following is the correct sequence of number of students in the six electives E1 to E6?
A) 19, 76, 79, 21, 45, 60
B) 19, 76, 78, 22, 45, 60
C) 18, 76, 79, 23, 43, 61
D) 18, 76, 79, 21, 45, 61

3. After the change process, which course among E1 to E6 had the largest change in its enrolment as a percentage of its original enrolment?
A) E1 B) E2 C) E3 D) E6

4. Later, the college imposed a condition that if after the change of electives, the enrolment in any elective (other than E7) dropped to less than 20 students, all the students who had left that course will be required to re-enrol for that elective.
Which of the following is a correct sequence of electives in decreasing order of their final enrolments?
A) E2, E3, E6, E5, E1, E4
B) E3, E2, E6, E5, E4, E1
C) E2, E5, E3, E1, E4, E6
D) E2, E3, E5, E6, E1, E3

Set No: 2 – 30:13

An old woman had the following assets:
(a) Rs. 70 lakh in bank deposits
(b) 1 house worth Rs. 50 lakh
(c) 3 flats, each worth Rs. 30 lakh
(d) Certain number of gold coins , each worth Rs. 1 lakh
She wanted to distribute her assets among her three children; Neeta, Seeta and Geeta. The house, any of the flats or any of the coins were not to be split. That is, the house went entirely to one child; a flat went to one child and similarly, a gold coin went to one child.
Among the three, Neeta received the least amount in bank deposits, while Geeta received the highest. The value of the assets was distributed equally among the children, as were the gold coins.
1. How much did Seeta receive in bank deposits (in lakhs of rupees)?
A) 30 B) 40 C) 20 D) 10
2. How many flats did Neeta receive? (TITA)
3. The value of the assets distributed among Neeta, Seeta and Geeta was in the ratio of 1:2:3, while the gold coins were distributed among them in the ratio of 2:3:4. One child got all three flats and she did not get the house. One child, other than Geeta, got Rs. 30 lakh in bank deposits.
How many gold coins did the old woman have?
A) 72 B) 90 C) 180 D) 216
4. The value of the assets distributed among Neeta, Seeta and Geeta was in the ratio of 1:2:3, while the gold coins were distributed among them in the ratio of 2:3:4. One child got all three flats and she did not get the house. One child, other than Geeta, got Rs. 30 lakh in bank deposits.
How much did Seeta get in bank deposits (in lakhs of rupees)? (TITA)

Question Credits : CAT 2017

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