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Directions (1-5): Study the information carefully and answer the following questions.
There are 2400 students in a school which has five classes i.e. sixth to tenth. Number of girls in seventh class is 50% more than number of boys in sixth class which is 50% of the total number of boys in eight class. Ratio between number of girls in sixth, eight and ninth class is 25 : 24 : 36. Total number of girls in sixth, eighth and ninth class is equal to number of girls in tenth class. Total number of boys in seventh class is 28% more than number of boys in ninth class. Number of boys in tenth class is 20 more than number of boys in ninth class. Total number of boys in eight class is 20% of total number of boys in all the classes together while total number of girls in seventh class is 15% of total number of girls in all the classes together.
Q1. Find the ratio between total number of boys in sixth, eight and tenth class together to the total number of girls in sixth, seventh and tenth class together?
(a) 5 : 6
(b) 6 : 7
(c) 3 : 4
(d) 8 : 7
(e) 7 : 8
Q2. Find average number of boys in seventh, eighth and ninth class together?
Q3. Girls in ninth class is what percent of total number of girls in school?
Q4. Total number of students in tenth class is how much more than total number of students in seventh class?
Q5. Number of girls in eight class is what percent less than number of boys in same class?
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