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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