Q1. Three persons A, B and C start running around a circular path. They can complete one round in, 18, 24 and 36 seconds respectively. After how much time they meet first time to each other from start.
(a) 108 sec
(b) 112 sec
(c) 96 sec
(d) 92 sec
(e) 72 sec
Q2. A biker can cross a running train in opposite direction to him in 12 sec. If speeds of biker and train be 72 kmph and 90 kmph respectively, what is the length of train? (Neglect the length of bike)
(a) 440 m
(b) 640 m
(c) 540 m
(d) 550 m
(e) None of these
Q3. Two persons P and Q can complete a Job alone in 26 days and 39 days respectively. In what time they will finish the work if they work together?
(a) 18.6 days
(b) 15.6 days
(c) 12.6 days
(d) 13 days
(e) None of these
Q4. The ratio of present ages of Rita and Rakhi is 4 : 7. After 6 years, the ratio of their ages becomes 2 : 3. Find the present age of Rakhi.
(a) 23 years
(b) 21 years
(c) 19 years
(d) 24 years
(e) 26 years
Q5. In how many ways 7 persons can be seated around a circular desk?
(a) 740
(b) 120
(c) 5040
(d) 720
(e) None of these
Solutions (1-5):
Directions (6-10): What will come in place of (?). In the following number series?
Q6. 341, 354, 343, 352, 345, 350, ?
(a) 351
(b) 347
(c) 342
(d) 340
(e) 353
Q7. 512, 128, 32, 8, 2, 0.5, ?
(a) 0.125
(b) 1.25
(c) 0.0125
(d) 1.24
(e) 2.12
Q8. 1, 2.5, 11, 67.5, ?, 5422.5
(a) 574
(b) 532
(c) 548
(d) 542
(e) 554
Q9. 3, 28, 77, 198, 367, ?
(a) 656
(b) 566
(c) 756
(d) 648
(e) 665
Q10. 4, 8, 32, 192, 1536, ?
(a) 15365
(b) 15355
(c) 15730
(d) 15370
(e) 15360
Solutions (6-10):
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