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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...
The average number of sweets distributed in a class of 25 students is 6. If ‘x’ number of students newly joined the class and the average becomes 5,...
5 positive numbers are written on a piece of paper. Sum of first 3 numbers is 40 and ratio of the 4th and the 5th number is 2:3. If difference between t...
A chef prepared 6 different dishes, and the average rating for those dishes was 18 out of 100. For the next 4 dishes, the chef improved significantly, a...
The average cost of three chairs is Rs.11000. The average cost decrease by 20% when one more chair is included. What is the cost price of the 4th
The average age of a class of 17 girls is 12 years. If 3 new girls having average age of 8 years join the class, then the average age of the class becomes:
The average weight of A, B and C is 45 kg. If the average weight of A and B be 40 kg andthat of B and C be 43 kg, then the weight of B is :
The average age of a group of 10 students is 30 years. Two persons of age 25 years and 30 years, left the group and 2 persons of age 54 years and...
The average weight of 70 notebooks kept in a box is 7 kg. When a new notebook is placed in the box, then the average is 7.1kg. Specify the weight of the...
