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The average number of books on history, polity and geography in a library is 144, and the average number of books on history and geography is 140. If th...
The average weight of 4 persons is 56 kg. The heaviest person’s weight is 30 kg more than the lightest person’s weight. If the average weight of the...
A group of students consists of 25 boys and the rest are girls. The average marks scored by boys is 72, and the average marks scored by girls is 84. If ...
Piyush bought 18 notebooks for Rs.1220 from shop A and 14 notebooks for Rs.860 from shop B. What is the average price he paid per book?
The average of five even numbers is 64. If we replace two of these even numbers, 84 and 92, with a single even number X, the new average decreases by 4....
The average weight of three men is increased by 5 kg when one of them, whose weight is 100 kg is replaced by another man. What is the weight of the new ...
The average height of each person in group 'G' having 28 people is 12 cm less than the average height of each person in group 'H' having 24 people. If t...
The average of the present ages of Arun, Mohan, and Deepak together is 30 years. Five years from now, the sum of the ages of Mohan and Deepak will be 66...
The average height of the boys in a class is 160 cm, while the average height of the girls is 155 cm. The overall average height of all students in the ...
The average number of books on history, polity and geography in a library is 150, and the average number of books on history and geography is 140. If th...
