May 1, 2021 - CSAT Quiz

1. Consider the following:
  1. A, B, C, D, E, F, G and H are standing in a row facing North.
  2. B is not neighbour of G.
  3. F is to the immediate right of G and neighbour of E.
  4. G is not at the extreme end.
  5. A is sixth to the left of E.
  6. H is sixth to the right of C. Which one of the following is correct in respect of the above?
(a) C is to the immediate left of A. (b) D is immediate neighbour of B and F. (c) G is to the immediate right of D. (d) A and E are at the extreme ends.   2. In a school, there are five teachers A, B, C, D and E. A and B teach Hindi and English. C and B teach English and Geography. D and A teach Mathematics and Hindi. E and B teach History and French. Who teaches maximum numb, of subjects? (a) A (b) B (c) D (d) E   3. What is the total number of digits printed, if a book containing 150 pages is to be numbered from 1 to 150? (a) 262 (b) 342 (c) 360 (d) 450   4. A clock strikes once at 1 o’clock, twice at 2 o’clock and thrice at 3 o’clock, and so on. If it takes 12 seconds to strike at 5 o’clock, what is the time taken by it to strike at 10 o’clock? (a) 20 seconds (b) 24 seconds (c) 28 seconds (d) 30 seconds   5. Consider the given statement and the two conclusions that follow: Statement: Morning walk is good for health. Conclusions:
  1. All healthy people go for morning walk.
  2. Morning walk is essential for maintaining good health.
What is/are the valid conclusion/ conclusions? (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2   ANSWERS 1. Solution B is not neighbour of G, which means final position is as under:
A C B D G F E H
Now let us check the options: (a) C is to the immediate left of A…..ANSWER (b) D is immediate neighbour of B and F…..NO (c) G is to the immediate right of D……NO (d) A and E are at the extreme ends…..NO   2. Solution Solution: A – Hindi, English B – Hindi, English, Geography, History, French C – English, Geography D – Mathematics, Hindi E – History, French Thus the answer is option (b):     3. Solution From 1 to 150, there are 9 single digit numbers (1 to 9) + 90 two digit numbers (10 to 99) + 51 three digit numbers (100 to 150) Thus total digits to be printed = (9 × 1) + (90 × 2) + (51 × 3) = 342. Therefore the answer is option (b): (b) 342   4. Solution The clock will strike 3 times at 3 o’ clock. These five strikes are interspersed with four intervals as under: Strike – Strike – Strike – Strike – Strike It is these intervals that take time. When clock strikes 5 times, there are 4 intervals. Total time taken by them is 12 seconds. Thus each interval is of duration 3 seconds. When the clock will strike 8 times at 9 o’ clock there shall be 8 such intervals and thus time taken shall be 8 ×3 = 24 seconds. (b) 24 seconds   5. Solution The statement simply says that morning walk is good for health. It is not presented as either the necessary or the suffcient condition for good health. Hence, conclusion 1 is incorrect as all healthy people need not go for morning walk Similarly, conclusion 2 is also incorrect as morning walk is not an esssential condition for good health Hence, the correct answer is option (d)


POSTED ON 01-05-2021 BY ADMIN
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