CSIR NET 2020 Mathematical Science Prev. Yr. Paper (26-Nov-2020)

Question 1

Find the value of f(0) if f(x + 2) = (x + 1)34 - (x + 1)33 + 5.

Accepted Answer

7

Answer

5

Answer

6

Answer

72

Question 2

The shortest distance between the parallel lines A and B in the following figure is

Accepted Answer

&radic;2

Answer

2

Answer

2&radic;2

Answer

2&radic;3

Question 3

Two varieties A and B of rice cost Rs. 30 and Rs. 90 per kg, whereas two varieties C and D of pulses, Rs. 100 and Rs. 120 per kg, respectively. If at least one kg each of A and B and at least half a kg each of C and D have to be purchased, then the minimum and maximum costs of a total of 5 kg of these provisions are, respectively

Accepted Answer

Rs. 290 and Rs. 470

Answer

Rs. 150 and Rs. 600

Answer

Rs. 260 and Rs. 530

Answer

Rs. 370 and Rs. 460

Question 4

One of four suspects A, B, C and D has committed a crime. A and D are always truthful, and B and C are always untruthful. C and D are identical twins and the interrogator does not know who is who. If A says, "D is innocent", B says, "A is guilty" and among C and D one says, "A is innocent" and the other says, "B is guilty", then which of the following is FALSE?

Accepted Answer

C is innocent

Answer

D said "A is innocent"

Answer

D is innocent

Answer

B is innocent

Question 5

Which is an appropriate diagram to represent the relations between the following categories: quadruped, mammal, whale, house lizard?

Accepted Answer

""

Answer

Answer

Answer

CSIR NET 2020 Mathematical Science Prev. Yr. Paper (26-Nov-2020)

CSIR NET 2025 Mathematical Science Mock Test Series

CSIR UGC NET Physical Sciences 2024 Mock Test Series

CSIR UGC NET Life Sciences 2025 Mock Test Series