Directions (50-54) : In the following questions, the following bar diagram shows the percentage of 7 coloured balls sold in 5 shops A, B, C, D and E. Study the graph and answer the questions.
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51). The shops having equal percentage of white balls are :
| A). A and C |
| B). C and E |
| C). B and C |
| D). A and B |
| E). None of these |
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52). What fraction of the total percentage of colour balls is to the percentage of total yellow balls ?
| A). \( \Large \frac{7}{50} \) |
| B). \( \Large \frac{3}{20} \) |
| C). \( \Large \frac{4}{25} \) |
| D). \( \Large \frac{13}{100} \) |
| E). None of these |
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53). The difference between the total number of percentage of violet balls and total number of percentage of blue balls is
| A). 10% |
| B). 15% |
| C). 25% |
| D). 40% |
| E). None of these |
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54). The ratio of total percentage of red balls and total percentage of orange balls is :
| A). 1:1 |
| B). 4:5 |
| C). 9:11 |
| D). 7:9 |
| E). None of these |
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55). A can do a work in 12 days. When he had worked for 3 days, B joined him. If they complete the work in 3 more days, in how many days can B alone finish the work ?
| A). 6 days |
| B). 12 days |
| C). 4 days |
| D). 8 days |
| E). None of these |
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56). Among three numbers, the first is twice the second and thrice the third. If the average of the three numbers is 49.5, then the difference between the first and the third number is :
| A). 54 |
| B). 28 |
| C). 39.5 |
| D). 41.5 |
| E). None of these |
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57). The mean of 50 numbers is 30. Later it was observed that two entries were wrongly entered as 82 and 13 instead of 28 and 31. Find the correct mean.
| A). 36.12 |
| B). 30.66 |
| C). 29.28 |
| D). 38.21 |
| E). None of these |
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58). A bicycle wheel makes 5000 revolutions in moving 11 km. Then the radius of the wheel (in cm) is :
| A). 70 |
| B). 35 |
| C). 17.5 |
| D). 140 |
| E). None of these |
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59). The perimeter of a triangle is 40 cm and its area is 60 \( \large cm^{2} \). If the largest side measures 17 cm. then the length (in cm) of the smallest side of the triangle is :
| A). 4 |
| B). 6 |
| C). 8 |
| D). 15 |
| E). None of these |
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60). A shopkeeper allows a discount of 10% to his customers and still gains 20%. Find-the marked price of the article which costs Rs.450/-
| A). Rs. 600/- |
| B). Rs. 540/- |
| C). Rs. 660/- |
| D). Rs. 580/- |
| E). None of these |
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