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Mock Test

Exam: RRB NTPC Subject: Reasoning Topic: Puzzles
Total Questions: 20
  1. Q1. The product of the ages of two brothers is 72. If the elder brother is 9 years old, how old is the younger brother?
  2. Q2. Seven friends G, H, I, J, K, L, and M live on seven different floors, numbered 1 to 7. G lives on the 4th floor. H lives on the floor immediately above G. I lives on the floor immediately below H. J lives on the 7th floor. K lives on the 1st floor. L lives on the 5th floor. Who lives on the 7th floor?
  3. Q3. What is the most common material used for jigsaw puzzles?
  4. Q4. A puzzle that requires unfolding or collapsing a flat object is a:
  5. Q5. Ten people P, Q, R, S, T, U, V, W, X, and Y are sitting in a row facing south. R is fourth to the left of S. T is second to the right of P. U is sitting at one of the extreme ends. V is sitting to the immediate right of Q. W is sitting between T and X. If there is exactly one person between S and V, and Y is to the immediate left of R, then who is sitting at the extreme left end?
  6. Q6. If tomorrow is Sunday, what day was the day before yesterday?
  7. Q7. Five people P, Q, R, S, T are sitting in a row. Q is to the left of P. R is to the right of Q. S is to the right of R. T is to the left of P. Who is in the middle?
  8. Q8. In a certain code, 'TELEPHONE' is written as 'TELOPN'. How is 'COMPUTERS' written in that code?
  9. Q9. Which puzzle involves creating specific shapes from a set of geometric pieces?
  10. Q10. Five friends A, B, C, D, E are sitting in a row. A is to the left of C. D is to the right of C. B is to the left of D. E is to the right of B. What is the order from left to right?
  11. Q11. What is the next number in the sequence: 1, 3, 5, 7, ?
  12. Q12. In a circular arrangement of 7 people, if person A is sitting diametrically opposite to person G, how many people are between A and G on either side?
  13. Q13. What is the basic unit of logic gates?
  14. Q14. Arun walks 5 km towards the west. He then turns south and walks 5 km. He then turns east and walks 5 km. How far is he from his starting point?
  15. Q15. A train travels at a speed of 60 km/h. How long will it take to cover a distance of 150 km?
  16. Q16. A clock shows 9:00 AM. A person starts walking from the clock tower. He walks 50 meters West. Then he turns South and walks 75 meters. He then turns 45 degrees North-East and walks 100 meters. In which direction is he from the clock tower?
  17. Q17. Consider a 7x7 grid where each cell is filled with either 0 or 1. If the sum of each row and each column is 3, and the sum of the numbers on the main diagonal is 1, how many such grids are possible?
  18. Q18. Four tasks, T1, T2, T3, and T4, need to be completed. T1 must be completed before T2. T3 must be completed after T4. T2 must be completed immediately after T3. Which task must be completed last?
  19. Q19. If 'No mammals are reptiles', and 'All dogs are mammals', what can be concluded?
  20. Q20. In a given code, 'WORK' is written as 'TUSV'. How is 'LOVE' written in that code?

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