Directions (Q. 1 –5): In the following number series one number is wrong. Find out the wrong number.

Q1. 267, 263, 251, 230, 203, 167

1. 251              2. 263                   3. 203             4. 230                5. 165

Q2. 135, 45, 18, 10, 6, 6

1. 10              2. 6                 3. 18             4. 135           5. 45

Q3. 45, 48. 5, 55.5, 65, 80, 97.5

1. 48.5                2. 65                3. 97.5             4. 55.5           5. 80

Q4. 856, 452, 250, 149, 98, 73.25

1. 98              2. 149                3. 856              4. 73.25              5. 50

Q5. 739, 758, 720, 737, 705, 718, 688

1. 739              2. 720                 3. 688              4. 705             5. 718

Directions (Q. 6-7): Study the information given below and answer the questions carefully:

Q6. Ramesh, Dinesh and Ganesh completed a job in 12 days. They worked together for 4 days in which they completed 44% of the total work. But due to unavoidable circumstances Ramesh quits the job at this point. Work done by Dinesh in 3 days is equal to the work done by Ganesh in 4 days. 6. Find the time taken by the fastest worker to complete the job.

1. 21.875 days               2. 23.475 days               3. 18.245 days             4.17.465 days            5. None of these

Q7. Find by what per cent the slowest worker is less efficient than the second fastest worker?

1. 13.54%                  2. 12.5%                  3. 37.5%             4. 44%               5. None of these

Q8. A right angle triangle with height 5 cm and base 12 cm. This triangle is rotated once accordingly its heights. Find the curved surface area of the cone obtained?

1. 146 π                2. 136 π                3. 156 π              4. 166 π           5. None of these

Q9. What value should come in the place of question mark (?) in the following question?

sqroot(729) + 5^2 = ? × 13

1. 4                 2. 8                 3. 6             4. 2            5. 3

Q10. 4 litres of wine are drawn from a cask containing 40 litres of wine and It is replaced by water. The process is repeated 5 times. Find out the ratio of wine to water finally. (Approximately)

1. 3 : 2             2. 2 : 3                3. 4 : 5             4. 5 : 6            5. None of these

Q11.The Binary Ice-cream Shopper sells two flavors: Vanilla and Chocolate. On Friday the ratio of Vanilla cones sold to Chocolate cones sold was 2 : 3. If the store had sold 4 more Vanilla cones, then, the ratio of Vanilla cones sold to the Chocolate cones sold would have been 3 : 4. How many Vanilla cones did the store sell on Friday?
(a) 32             (b) 35             (c) 42             (d) 48             (e) None of the above

Q12.When the price of every T.V was reduced by 10%, its sale increased by 80%. What was the net effect on the revenue?
(a) 62% increase              (b) 44% increase             (c) 90% increase             (d) 81% increase             (e) None of the above

Q13.The average age of a board of 8 functional directors in a company is the same as it was 3 years ago, a younger man having been substituted for one of the directors. How much younger was the new man than director whose place he took.
(a) 24 years              (b) 26 years              (c) 28 years              (d) 22 years             (e) None of the above

Q14.A person invested in three banks in the ratio of 1 : 2 : 3 and the rates were in the ratio of 2 : 3 : 4 at SI, also he got the income in the ratio of 3 : 4 : 5 then find the ratio of time periods?
(a) 5 : 8 : 13             (b) 18 : 8 : 7             (c) 18 : 8 : 5              (d) 18 : 6 : 5              (e) None of the above

Q15.A person travels one-fourth of a certain distance at x kmph, one-third of the remaining distance at 3x kmph and the remaining distance at 2x kmph. If his average speed for the entire journey is (x + 14) kmph, then find the total distance he covers.
(a) 60 km             (b) 50 km             (c) 40 km             (d) Cannot be determined             (e) None of the above

Directions (Q.16-20): Find the wrong number in each of the following series.

Q16. 13, 25, 40, 57, 79, 103, 130
(a) 25             (b) 40              (c) 57             (d) 79             (e) None of the above

Q17. 850, 600, 550, 500, 475, 462.5, 456.25
(a) 600             (b) 550             (c) 500             (d) 462.5             (e) None of the above

Q18. 2, 10, 18, 54, 162, 486, 1458
(a) 8             (b) 54             (c) 162              (d) 10              (e) None of the above

Q19. 8, 12, 24, 46, 72, 108, 152
(a) 12             (b) 24             (c) 46             (d) 72             (e) None of the above

Q20. 142, 119, 100, 83, 65, 59, 52
(a) 65             (b) 100             (c) 59             (d) 119              (e) None of the above

Solution