Category: TIFR Previous Year Question Papers 2025 Biology With Answer Key Download

10. To estimate the number of fish in a pond, a researcher catches 25 fish randomly, marks them with yellow paint and then puts them back in the pond. The […]

9.What is the output of the following pseudocode program, which first defines a function functn and then calls it from a for-loop? def functn(n) if n==1 return 1 else return […]

8. Sum of the eigenvalues of the matrix 2 2 −1 5 3 1 1 4 −2 is ________. (1m) (a) 1 (b) 2 (c) 3 (d) None of the […]

7. Which of the following is the largest? (1m) (a) 1001/100 (b) 1001/101 (c) 101/51 (d) 101/52 Which is the Largest: 1001/100, 1001/101, 101/51, or 101/52? 1001/100 is the largest […]

6. If the diameter of a circle is increased by 30% then the area is increased by: (a) 30% (b) 60% (c) 69% (d) 90% Diameter of Circle Increased by […]

5. The lesion most commonly induced by UV radiation is ______. A. Chromosome breaks B. Transition C. Transversion D. Thymine dimer The lesion most commonly induced by UV radiation is […]

4. A batsman scores 100 runs in the 15th inning and thus increases his average by 5. What will be the average after 15th inning? A. 27 B. 30 C. […]

3. The next number in the series 2, 5, 11, 23, 47, ? will be. A. 95 B. 96 C. 97 D. 98 Pattern Explanation The series follows a recursive […]

2. A flea is about 3mm tall but can jump to a height of about 30 cm. If a child is 36inches tall had flea-like abilities, how high will she […]

1. What is the probability that the second child will be a boy for parents whose firstchild is also a boy?(a) 0.25(b) 1(c) 0.5(d) 0 The correct answer is (c) […]