Q1. A can finish a work in 9 days. What fraction of work does A complete in 4 days?
Daily work = 1/9. In 4 days, work done = 4/9.
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Q2. Choose the odd one out: Monday, Tuesday, Friday, January
January is a month; others are weekdays.
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Q3. Find the missing value in the sequence: 9, 16, 25, 36, 49, ?
Terms are consecutive squares. Next square is 64.
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Q4. Using alternating shifts on letters, 'MIND' becomes 'NHOC'. Then 'TASK' becomes?
Apply +1 to 1st, -1 to 2nd, +1 to 3rd, and so on.
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Q5. Find the next number: 10, 22, 9, 24, 10, 26, ?
Odd positions follow +2 sequence. Next odd-position term is 12.
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Q6. A ferry carries 5 crates per crossing. 22 crates must cross one-way. Minimum crossings?
Minimum one-way crossings = ceil(22/5) = 5.
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Q7. Arjun is married to Meera. Meera is the sister of Aarav. How is Arjun related to Aarav?
Arjun is spouse of Aarav's sister (Meera), so Arjun is Aarav's brother-in-law.
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Q8. Solve for x: 8x + 11 = 155
8x = 144. So x = 144/8 = 18.
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Q9. Six people A-F sit in a row. Based on the clues: (1) B sits at the extreme left end. (2) D sits at the extreme right end. (3) C sits second to the right of B. (4) F sits immediately to the right of C. (5) A sits immediately to the left of D. (6) E sits between B and C. Who sits fourth from the left?
From clues, left-to-right order is B, E, C, F, A, D. Fourth from left is F.
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Q10. Pipe A fills a tank in 15 h and Pipe B in 30 h. If both are opened together, tank fills in?
Combined rate = 1/15+1/30. Time = 450/45 = 10 h.
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Q11. A boatman moves 4 parcels across, carrying one parcel outbound and returning empty except after the final trip. Total one-way movements?
For n parcels, one-way movements = 2n - 1 = 7.
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Q12. A bag has 6 red and 6 blue balls. Probability of picking a red ball?
Favorable outcomes = 6, total outcomes = 12. So probability = 6/12.
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Q13. Find the next letter in the series: I, K, M, O, Q, ?
Letters progress by +2 position each step. So next is S.
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Q14. Find the missing value in the sequence: 16, 25, 36, 49, 64, ?
Terms are consecutive squares. Next square is 81.
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Q15. At 8:00, do the clock hands make a right angle?
Angle at 8:00 is 120 deg. Right angle means 90 deg, so answer is No.
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Q16. Given 3, 9, 8 with forward differences 6, -1, ?, find the next difference.
Difference step continues, so next difference = -1 + (-7) = 5.
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Q17. Find 10P3.
nPr = n!/(n-r)! = 720.
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Q18. In a grid maze, you move 6 right, 12 up, then 1 left. Shortest straight-line distance from start now?
Q19. Using the clues (1) A sits at the extreme left end. (2) C sits at the extreme right end. (3) F sits second to the right of A. (4) B sits immediately to the right of F. (5) D sits immediately to the left of C. (6) E sits between A and F. how many persons sit between E and D?
Order is A, E, F, B, D, C. Between E and D there are 2 persons.
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Q20. Five friends sit left to right as: Charan, Aman, Esha, Diya, Bhavna. Who sits at position 4 from the left?
From the sequence, position 4 is occupied by Diya.