If average weight of a class is ‘y’ kg. If a new student weighing 21 kg took admission, then the average weight is increases by 1 kg. If the...
The mean weight of 'w' students in a classroom is 42 kg. When the class teacher, weighing 61.5 kg, is added to the group, the average weight increases b...
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...
The average age of a class of 25 girls is 20 years. If 7 new girls having average age of 12 years join the class, then the average age of the class beco...
Average age of company A is 21 years and average age of both companies A and B is 13 years. If the ratio of number of employees in company A and B is 3:...
Average weight of 17 nurses is 48 kg. If the weight of one more nurse is included, then average weight is increased by 1 kg. Find the weight of the newl...
In a school with 400 students, the average of the age of the boys is 16 years and that of the girls is 12 years. If the average age of the school is 14 ...
In a World Cup match, the average runs scored by Virat Kohli in his first 8 matches are 28. What should be his average score in the next two matches for...
A and B started a business investing Rs. 1500 for ‘x’ months and Rs. 1800 for 10 months, respectively. Out of total profit of Rs. 5000, profit shar...
Average age of company A is 25 years and average age of both companies A and B is 17 years. If the ratio of number of employees in company A and B is 3:...
