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Ramavatar Sharma
23 Feb 2019 5:23 AM
Student Projects | Science Fair Central
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In a class with a certain number of students, if one student weighing so kg is added, then the average weight of the class increases by 1 kg. If one more student weighing 50 kg is added, then the average weight of the class increases by 1.5 kg over the original average. What is the original average weight of the class?
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.In a row of students, if John , who is 16th from the left, and Johnson, who is 8th from the right, interchange their positions, John becomes 33rd from left. How many students are there in a row?
Attempt NowThe average of the test scores of a class of 'm students is 70 and that of 'n' students is 91. When the scores of both the classes are is n/ m? combined, the average is 80. What is n/ m?
Attempt Now800 chocolates were distributed among the students of a class. Each student got twice as many chocolates as the number of students in the class. The number of students in the class was:
Attempt Now800 chocolates were distributed among the students of a class. Each student got twice as many chocolates as the number of students in the class. The number of students in the class was:
Attempt NowQ. 800 chocolates were distributed among the students of a class. Each student got twice as many chocolates as the number of students in the class. The number of students in the class was:
Attempt NowQ. In an examination 65% students pass in history and 55% students pass in hindi. If 5% students failed in both the subjects, then what is the percentage of students who have passed in both the subjects?
Attempt NowThe average weight of 100 students is 32 kg. The average weight of first 49 students is 30 kg and of last 50 students is 34 kg. What is the weight (in kg) of the 50th student?
Attempt NowAverage Marks obtained by 9 students in one row of a class is 45. One student with 35 marks exchanges his seat with a student securing 48 marks . what is the average marks of these 9 students of this row ?
Attempt NowAverage Marks obtained by 9 students in one row of a class is 45. One student with 35 marks exchanges his seat with a student securing 48 marks . what is the average marks of these 9 students of this row ?
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