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The correct answer is C
The average age of a class of 24 girls is 16 years. If 6 new girls having average age of 12 years join the class, then the average age of the class beco...
Average weight of 11 nurses is 36 kg. If the weight of one more nurse is included, then average weight is increased by 2 kg. Find the weight of the newl...
The average cost of 3 chairs is Rs. 8000. The average cost decrease by 20% when one more chair is included. What is the cost price of the 4th...
The average age of husband, wife and their child 4 years ago was 26 years and that of wife and the child 5 years ago was 25 years. The present age of th...
In an Aerobic class, the average age of all the members was 54.5 years, 11 members left the class and 7 new members joined. If the average age increase...
The average weight of 4 persons is 40 kg. The heaviest person’s weight is 26 kg more than the lightest person’s weight. If the average weight of the...
Average marks scored by Vineet in five subjects are 75. The average marks scored by him (excluding his highest and lowest marks) are 60 and lowest marks...
The average weight of 8 persons is increased by 2.5 kg, when a person whose weight is 56 kg, is replaced by a new comer. Find the weight of new comer?
The average age of a group of eight children is 9 years. Two children, whose ages were 7 years more and 5 years more than the average age, left. Two new...
The average cost price of 25 pens (having equal cost price) decreased by Rs.4, when one of the pen is replaced by a new pen having cost price of Rs.60. ...
