9th August 2017 - 1st Shift 

 A. 3√5
 B. 4√6
 C. 6√12
 D. None of these
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52.A piece of work was finished by A, B and C together. A and B together finished 60% of the work and B and C together finished 70% of the work. Who among the three is most efficient?
 A. A
 B. B
 C. C
 D. A or B
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53.Three solid spheres of radius 3 cm, 4 cm and 5 cm are melted and recasted into a solid sphere. What will be the percentage decrease in the surface area?
 A. 12
 B. 14
 C. 16
 D. 28
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54.The marked price of a sofa set is Rs 4800 which is sold at Rs 3672 at two successive discounts. If the first discount is 10%, then what will be the second discount (in %)?
 A. 13
 B. 14
 C. 15
 D. 17
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55.A, B and C invested amounts in the ratio 3 : 4 : 5 respectively. If the schemes offered compound interest at the rate of 20% per annum, 15% per annum and 10% per annum respectively, then what will be the ratio of their amounts after 1 year?
 A. 3 : 15 : 25
 B. 6 : 6 : 5
 C. 36 : 46 : 55
 D. 12 : 23 : 11
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56.The average age of 120 members of a society is 60.7 years. By addition of 30 new members, the average age becomes 56.3 years. What is the average age (in years) of newly joined members?
 A. 36.5
 B. 37.2
 C. 38.3
 D. 38.7
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57.By selling 175 pineapples, the gain is equal to the selling price of 50 pineapples. What is the gain percentage?
 A. 28
 B. 30
 C. 32
 D. 40
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58.If A has got 20% more marks than B, then by what percent marks of B are less than the marks of A?
 A. 16.66
 B. 20
 C. 33.33
 D. 14.28
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59.A train leaves Delhi at 10 a.m. and reaches Jaipur at 4 p.m. on same day. Another train leaves Jaipur at 12 p.m. and reaches Delhi at 5 p.m. on same day. What is the time of day (approximately) when the two trains will meet?
 A. 1:42 p.m.
 B. 1:27 p.m.
 C. 2:04 p.m.
 D. 1:49 p.m.
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60.The difference between the compound interest compounding half yearly for 1 year and the simple interest for 1 year on a certain sum of money lent out at 8% per annum is Rs 64. What is the sum (in Rs)?
 A. 40000
 B. 42000
 C. 44000
 D. 44800
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