51). Which value among \( \large \sqrt[3]{5} \), \( \large \sqrt[4]{6} \),\( \large \sqrt[6]{12} \),\( \large \sqrt[12]{276} \), is the larges ?
| A). \( \large \sqrt[3]{5} \) |
| B). \( \large \sqrt[4]{6} \) |
| C). \( \large \sqrt[6]{12} \) |
| D). \( \large \sqrt[12]{276} \) |
|
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 |
|
53). Three solid spheres of radius 3cm, 4cm and 5cm are melted and recasted into a solid sphere. what will be the percentage decrease in the surface area?
| A). 0.12 |
| B). 0.14 |
| C). 0.16 |
| D). 0.28 |
|
54). The marked price of a sofa set is Rs.4,800/- which is sold at Rs.3,672/- at two successive discounts. If the first discount is 10%, then what will be the second discount (in %) ?
| A). 0.13 |
| B). 0.14 |
| C). 0.15 |
| D). 0.17 |
|
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 |
|
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 years |
| B). 37.2 years |
| C). 38.3 years |
| D). 38.7 years |
|
57). By selling 175 pineapples, the gain is equal to the selling price of 50 pineapples. What is the gain percentage ?
| A). 0.28 |
| B). 0.3 |
| C). 0.32 |
| D). 0.4 |
|
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). 0.1666 |
| B). 0.2 |
| C). 0.3333 |
| D). 0.1428 |
|
59). A train leaves Delhi at 10 am. 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. |
|
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). Rs. 40,000/- |
| B). Rs. 42,000/- |
| C). Rs. 44,000/- |
| D). Rs. 44,800/- |
|
