Study the following graph and answer the questions 1-4
In which standard is the difference between the results of girls and boys maximum?
| A. | V |
| B. | VII |
| C. | X |
| D. | VIII |
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Option: D Explanation : The difference between the results of girls and boys in V standard is 20; in VI standard is 10; in VII standard is 20 and in VIII standard is 30; in IX standard is 10 and in X standard is 10. So, it is maximum in VIII standard. Click on Discuss to view users comments. |
In which standard is the result of boys less than the average result of the girls?
| A. | VII |
| B. | IX |
| C. | VI |
| D. | VIII |
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Option: A Explanation : Average result of girls. = (60+70+60+60+80+60)/6 = 390/6 =65% Click on Discuss to view users comments. |
In which pair of standards are the results of the girls and boys in inverse proportion?
| A. | V & X |
| B. | VI and VIII |
| C. | V & IX |
| D. | VI & IX |
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Option: D Explanation : In VI standard, the results of boys and girls are in the ratio 8:7 while in IX standard, the results of boys and girls are in the ration 7: 8. Click on Discuss to view users comments. |
In which standard is the result of the girls more than the average result of the boys for the school?
| A. | XI |
| B. | VIII |
| C. | VI |
| D. | X |
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Option: A Explanation : Average result of boys = 1/6 (80+80+40+90+70+70) = 430/6 = 71.7% Clearly, in IX standard the result of girls is more than the average result of the boys.
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