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1. he average weight of 16 boys in a class is 25 kg and that of the remaining 8 boys is 15 kg. Find the average weights of all the boys in the class.
Answer: 48.55
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QA>he average weight of 16 boys in a class is 25 kg and that of the remaining 8 boys is 15 kg. Find the average weights of all the boys in the class.....
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MCQ>Consider the following statements associated with the laws of weights in the theory of erros : 1. If an equation is multiplied by its own weight, then the weight of the resulting equation is equal to the reciprocal of the weight of the equation. 2. The weight of the algebraic sum of two or more quantities is equal to the reciprocal of the sum of the individual weights. 3. If the quantity of a given weight is multiplied by a factor, then the weight of the result is obtained by dividing its given weight by the square root of that factor. 4. If the quantity of a given weight is divided by a factor, then the weight of the result is obtained by multiplying its given weight by the square of that factor. Of these statements :...
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MCQ>what is the total number of students (male and Female) in the class? I. the average weight of the students of the class is 61.08 kg. the average weight of male students is 63 kg and the average weight of the female students is 59 kg. The difference between number of male students and number of female students is 3. II. The respective ratio of number of male students and number of female students in the class is 13:12....
MCQ>There are 50 boys in a class. Their average weight is 45 kg. When one boy leaves the class, the average reduces by 100 gms. Find the weight of the boy who left the class?...
MCQ>In Arun's opinion, his weight is greater than 65 kg but less than 72 kg. His brother doest not agree with Arun and he thinks that Arun's weight is greater than 60 kg but less than 70 kg. His mother's view is that his weight cannot be greater than 68 kg. If all are them are correct in their estimation, what is the average of different probable weights of Arun?...
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